diff --git a/data-encoding/src/binary_description.mli b/data-encoding/src/binary_description.mli
index 95fe41a7a113b23c5503d2d0817e40ed139e01b3..66bb27a4d75e7425e30b68b683a31fcba6bec3e6 100644
--- a/data-encoding/src/binary_description.mli
+++ b/data-encoding/src/binary_description.mli
@@ -26,6 +26,6 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 val describe : 'a Encoding.t -> Binary_schema.t
diff --git a/data-encoding/src/binary_error.mli b/data-encoding/src/binary_error.mli
index 51aa5ea2a28e0cfd1a4321b4622753499516ade5..7d3f9edfe9a9df572d8dbf03c09040e4e3b8487b 100644
--- a/data-encoding/src/binary_error.mli
+++ b/data-encoding/src/binary_error.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 open Binary_error_types
 
diff --git a/data-encoding/src/binary_error_types.mli b/data-encoding/src/binary_error_types.mli
index 07504f367d659e091ad30af4c18c1640d98007ac..ae3c4086ee63fe3e492f7580e5a7a9d9a5e93a65 100644
--- a/data-encoding/src/binary_error_types.mli
+++ b/data-encoding/src/binary_error_types.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 exception Invariant_guard of string
 
diff --git a/data-encoding/src/binary_length.mli b/data-encoding/src/binary_length.mli
index 3352580a8294c89c830618dca35adf6d5e0114fe..ceed4a890502b73bfa2e89825cd8784a2a43048a 100644
--- a/data-encoding/src/binary_length.mli
+++ b/data-encoding/src/binary_length.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 val length : 'a Encoding.t -> 'a -> int
 
diff --git a/data-encoding/src/binary_reader.mli b/data-encoding/src/binary_reader.mli
index c56361ceff6a1524d6668073fe51e7e11addead0..7288c7bfc9525970e9dcd2fbbaa3f1ab1323726b 100644
--- a/data-encoding/src/binary_reader.mli
+++ b/data-encoding/src/binary_reader.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 val read :
   'a Encoding.t ->
diff --git a/data-encoding/src/binary_schema.mli b/data-encoding/src/binary_schema.mli
index a4c8906af34a3f7b3de0e3e10c7398899b861895..0e389d8c10c3e5df8b3508e327e059acdd18331c 100644
--- a/data-encoding/src/binary_schema.mli
+++ b/data-encoding/src/binary_schema.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type integer_extended = [Binary_size.integer | `Int32 | `Int64]
 
diff --git a/data-encoding/src/binary_size.mli b/data-encoding/src/binary_size.mli
index a35ca86c72a0753ad75a7e0d6a17dbbe01e06564..5bcb0a7741935a44f8f539a0421b52f574f1d030 100644
--- a/data-encoding/src/binary_size.mli
+++ b/data-encoding/src/binary_size.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 val bool : int
 
diff --git a/data-encoding/src/binary_slicer.mli b/data-encoding/src/binary_slicer.mli
index 9338b9ca493ae6e4580ece4aa22edfeb1ad6187e..e34e6e6dc588dd633d81d8abeb52b21daab0c140 100644
--- a/data-encoding/src/binary_slicer.mli
+++ b/data-encoding/src/binary_slicer.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type slice = {name : string; value : string; pretty_printed : string}
 
diff --git a/data-encoding/src/binary_stream.mli b/data-encoding/src/binary_stream.mli
index f3f1459d91ea6610a7ad09cb5bb98ad65965d3dd..e1b062379ba953062293aee6b07316fa97384b27 100644
--- a/data-encoding/src/binary_stream.mli
+++ b/data-encoding/src/binary_stream.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type t
 
diff --git a/data-encoding/src/binary_stream_reader.mli b/data-encoding/src/binary_stream_reader.mli
index edc91a3ecc0287c6c98fd6536445cb7fbf652ead..8bb3c6641df3b7f70ebd1c70227417ddfdeb7841 100644
--- a/data-encoding/src/binary_stream_reader.mli
+++ b/data-encoding/src/binary_stream_reader.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type 'ret status =
   | Success of {result : 'ret; size : int; stream : Binary_stream.t}
diff --git a/data-encoding/src/binary_writer.mli b/data-encoding/src/binary_writer.mli
index 2fdd4afe496acbdfb2b4bc05b550d3996c926246..7716ecfd178587d34879cf6693a441c146b4db72 100644
--- a/data-encoding/src/binary_writer.mli
+++ b/data-encoding/src/binary_writer.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type writer_state
 
diff --git a/data-encoding/src/bson.mli b/data-encoding/src/bson.mli
index e53c7085b4e1eca415ddcf7d7179417016502af6..fee07b5402fe9c0f138445cc88e3a92ed6429d38 100644
--- a/data-encoding/src/bson.mli
+++ b/data-encoding/src/bson.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type bson = Json_repr_bson.bson
 
diff --git a/data-encoding/src/compact.mli b/data-encoding/src/compact.mli
index bd61359ca54545f16c4c6f6f8ec78cda280bc8b1..b7a24e5edd16f5a17a10c7dc79d294b94f070fbe 100644
--- a/data-encoding/src/compact.mli
+++ b/data-encoding/src/compact.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type 'a t
 
diff --git a/data-encoding/src/encoding.mli b/data-encoding/src/encoding.mli
index a5cd3a3905dd4615db52174523cca797d73572d2..e498b852f17ab7dde571b04345dd1b3653c66e85 100644
--- a/data-encoding/src/encoding.mli
+++ b/data-encoding/src/encoding.mli
@@ -27,7 +27,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation.
+    for documentation.
 
     Note however that this module can be of interest to advanced users. You may
     read on if you need access to the concrete definition of the
diff --git a/data-encoding/src/json.mli b/data-encoding/src/json.mli
index 42acc4c6c4fb4fc1ebd86948daf16243d33ea849..35f7a173b09cb5a3e64fd836cd122ab8bf589a49 100644
--- a/data-encoding/src/json.mli
+++ b/data-encoding/src/json.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type json =
   [ `O of (string * json) list
diff --git a/data-encoding/src/json_stream.mli b/data-encoding/src/json_stream.mli
index 65f80c1d6e6c471d5685064dc0adcb9c5da73d32..ace8ad79811ded76f537e27cad51202ef5b08158 100644
--- a/data-encoding/src/json_stream.mli
+++ b/data-encoding/src/json_stream.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type jsonm_lexeme =
   [ `Null
diff --git a/data-encoding/src/registration.mli b/data-encoding/src/registration.mli
index c0c06f42b0de615a83bd8a9d576e5584ba40b7ca..6a2ac450fbd455df232bddbd9574c7d1d8daa32d 100644
--- a/data-encoding/src/registration.mli
+++ b/data-encoding/src/registration.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type id = string
 
diff --git a/data-encoding/src/tzEndian.mli b/data-encoding/src/tzEndian.mli
index 558117fada03496a1b6a514cd58dad943a60a956..fdfe1fe3f02906a0c06b7e542d5fe56fe976012d 100644
--- a/data-encoding/src/tzEndian.mli
+++ b/data-encoding/src/tzEndian.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type endianness = Big_endian | Little_endian [@@deriving hash]
 
diff --git a/data-encoding/src/uint_option.mli b/data-encoding/src/uint_option.mli
index 24deba1dea6c26a238098d75911703f357d9d3e4..441e61997fc78c16be7af50ca5bee7447861624e 100644
--- a/data-encoding/src/uint_option.mli
+++ b/data-encoding/src/uint_option.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 (**
 
diff --git a/data-encoding/src/with_version.mli b/data-encoding/src/with_version.mli
index 2efb0aafb3c084dda25fc88e2e8b442c35583974..1b37f0ee4dbecde0a489325088bb5c65276eb880 100644
--- a/data-encoding/src/with_version.mli
+++ b/data-encoding/src/with_version.mli
@@ -26,7 +26,7 @@
 (** Like most other [.mli] files in this directory, this is not intended for
     end-users. Instead, the interface from this file is used internally to
     assemble the end-user-intended module {!Data_encoding}. Refer to that module
-    for doucmentation. *)
+    for documentation. *)
 
 type _ t