--- gtweak/gsettings.py.old	2013-11-16 09:00:44.863767301 +0100
+++ gtweak/gsettings.py	2013-11-16 09:01:18.873393932 +0100
@@ -34,6 +34,8 @@
     def __init__(self, schema_name, schema_dir=None, schema_filename=None, **options):
         if not schema_dir:
             schema_dir = gtweak.GSETTINGS_SCHEMA_DIR
+        if schema_name == "org.gnome.desktop.wm.preferences":
+            schema_filename = schema_name + ".gschema.xml"
         if not schema_filename:
             schema_filename = schema_name + ".gschema.xml"