diff --git a/tools/resources/__init__.py b/tools/resources/__init__.py
index 46727769e7..c131d217e7 100644
--- a/tools/resources/__init__.py
+++ b/tools/resources/__init__.py
@@ -500,7 +500,10 @@ class Resources(object):
                 start_at = index + 1
                 break
         for n in range(start_at, len(components)):
-            parent_name = self._sep.join([into_path] + components[:n])
+            parent_name_parts = components[:n]
+            if into_path:
+                parent_name_parts.insert(0, into_path)
+            parent_name = self._sep.join(parent_name_parts)
             parent_path = join(base_path, *components[:n])
             yield FileRef(parent_name, parent_path)