diff --git a/Lib/Makefile b/Lib/Makefile
index b70dc12f9be..1596ef1544f 100644
--- a/Lib/Makefile
+++ b/Lib/Makefile
@@ -2,7 +2,7 @@ all:
 		@echo Nothing to make in this directory.
 
 clean:
-		find . '(' -name '*.pyc' -o -name '*.fdc' \
+		find . '(' -name '*.py[co]' -o -name '*.fdc' \
 			-o -name core -o -name '*~' \
 			-o -name '[@,#]*' -o -name '*.old' \
 			-o -name '*.orig' -o -name '*.rej' \