diff --git a/tools/pidl/.gitignore b/tools/pidl/.gitignore
index daad79c..f057c5f 100644
--- a/tools/pidl/.gitignore
+++ b/tools/pidl/.gitignore
@@ -1,4 +1,4 @@
-blib
+blib/
 pm_to_blib
 MYMETA.yml
 Makefile