diff --git a/Pmodules/libpbuild.bash b/Pmodules/libpbuild.bash
index cc7b03e..424dbb9 100644
--- a/Pmodules/libpbuild.bash
+++ b/Pmodules/libpbuild.bash
@@ -806,11 +806,17 @@ pbuild::make_all() {
 	}
 
 	#......................................................................
-	# non-redefinable post-install
+	# non-redefinable post-install. Install:
+	# - documentation files as defined in the build-script
+	# - modulefile and file with release
+	# .
 	post_install() {
 		#..............................................................
 		# install the doc-files specified in the build-script
 		#
+		# Arguments:
+		#     none
+		#
 		install_doc() {
 			if [[ -z "${MODULE_DOCFILES}" ]]; then
 				for f in ${VERSIONS[@]/#/pbuild::install_docfiles_}; do