diff --git a/oxdbarchive/model.py b/oxdbarchive/model.py
index 4fe3fad..5509cd2 100644
--- a/oxdbarchive/model.py
+++ b/oxdbarchive/model.py
@@ -195,7 +195,7 @@ class Archive(SQLObject):
     for f in oxdb_files:
       if oxdb_files[f]['md5sum'] not in md5sum_on_disk:
         print "remove", f
-        self.removeFile({'md5sum':oxdb_files[f]['md5sum']})
+        self.removeFile(oxdb_files[f]['md5sum'])
         stats['remove'] += 1
     print stats
     return stats