diff --git a/README.adoc b/README.adoc
index 0c516da85f08a1e466a103768a945925f8413b9b..b51f6d8f7788a213a11b1876412ed7caad9e18b2 100644
--- a/README.adoc
+++ b/README.adoc
@@ -528,7 +528,7 @@ If not set, the command is expected to create this directory before writing the
 |`false`
 |Boolean
 
-|`build.keep_source`
+|`build.keep_aggregate_source`
 |Whether to keep the aggregate AsciiDoc source files under the build dir (images are always kept).
 |`false`
 |Boolean