diff --git a/pisi/index.py b/pisi/index.py
index 0afb8c1a..ee313440 100644
--- a/pisi/index.py
+++ b/pisi/index.py
@@ -34,12 +34,6 @@ import pisi.group as group
 class Error(pisi.Error):
     pass
 
-class DistributionMismatchException(pisi.Exception):
-    pass
-
-class ArchitectureMismatchException(pisi.Exception):
-    pass
-
 class Index(xmlfile.XmlFile):
     __metaclass__ = autoxml.autoxml