diff --git a/PVE/AccessControl.pm b/PVE/AccessControl.pm
index 4ef1080..730ef68 100644
--- a/PVE/AccessControl.pm
+++ b/PVE/AccessControl.pm
@@ -930,7 +930,8 @@ sub normalize_path {
 }
 
 sub check_path {
-    return shift =~ m!^(
+    my ($path) = @_;
+    return $path =~ m!^(
 	/
 	|/access
 	|/access/groups