diff --git a/scripts/proto_manager.sh b/scripts/proto_manager.sh
index 55e3b7fbac5c94dd4599b9be02a033bb7615f6f0..040b46db28e08cfc84b480a20a9dec626d89d0b2 100755
--- a/scripts/proto_manager.sh
+++ b/scripts/proto_manager.sh
@@ -1102,7 +1102,7 @@ function update_tezt_tests() {
     else
       sed -r 's/(.*) '${capitalized_source}' -> ([0-9][0-9][0-9])/printf "\1 '${capitalized_label}' -> \2 | '${capitalized_source}' -> %03i" "$(echo \2+1 | bc)"/ge' -i.old tezt/lib_tezos/protocol.ml
     fi
-    sed "/| ${capitalized_source} -> \"proto_${protocol_source}\"/i | ${capitalized_label} -> \"proto_${label}\"\n" -i.old tezt/lib_tezos/protocol.ml
+    sed "/| ${capitalized_source} -> \"proto_${protocol_source}\"/a | ${capitalized_label} -> \"proto_${label}\"\n" -i.old tezt/lib_tezos/protocol.ml
 
     # add $(capitalized_label) -> "$long_hash" before "(* DO NOT REMOVE, AUTOMATICALLY ADD STABILISED PROTOCOL HASH HERE *)"
     sed "/\(\* DO NOT REMOVE, AUTOMATICALLY ADD STABILISED PROTOCOL HASH HERE \*\)/i \ | ${capitalized_label} -> \"${long_hash}\"" -i.old tezt/lib_tezos/protocol.ml