diff --git a/recipes/helm-perldoc b/recipes/helm-perldoc
index 6a09ca01..558435d1 100644
--- a/recipes/helm-perldoc
+++ b/recipes/helm-perldoc
@@ -1 +1,2 @@
-(helm-perldoc :fetcher "github" :repo "syohex/emacs-helm-perldoc")
+(helm-perldoc :fetcher "github" :repo "syohex/emacs-helm-perldoc"
+              :files ("*.el" "*.pl"))