diff --git a/core_pe/app_cocoa.py b/core_pe/app_cocoa.py
index 0e2d5d01..4cd7d1a6 100644
--- a/core_pe/app_cocoa.py
+++ b/core_pe/app_cocoa.py
@@ -89,7 +89,7 @@ class Directories(directories.Directories):
         except directories.InvalidPathError:
             self.iphoto_libpath = None
     
-    def _get_files(self, from_path):
+    def _get_files(self, from_path, j):
         if from_path == IPHOTO_PATH:
             if self.iphoto_libpath is None:
                 return []