diff --git a/src/Filters/Rules/Makefile.am b/src/Filters/Rules/Makefile.am
index 935b14ca6..3b31ff5c0 100644
--- a/src/Filters/Rules/Makefile.am
+++ b/src/Filters/Rules/Makefile.am
@@ -24,6 +24,7 @@ pkgdata_PYTHON = \
 	_HasTextMatchingSubstringOf.py\
 	__init__.py\
 	_IsPrivate.py\
+        _IsPublic.py\
 	_RegExpIdBase.py\
 	_Rule.py\
 	_MatchesFilterBase.py\