diff --git a/pisi/delta.py b/pisi/delta.py
index b0ebeda7..1b19c770 100644
--- a/pisi/delta.py
+++ b/pisi/delta.py
@@ -110,6 +110,9 @@ def find_delta(oldfiles, newfiles):
     for h in files_delta:
         deltas.extend(hashto_files[h])
 
+    # Directory hashes are None. There was a bug with PolicyKit that should have an empty directory.
+    deltas.extend(hashto_files[None])
+
     return deltas
 
 def find_relocations(oldfiles, newfiles):