diff --git a/tuf/repository_tool.py b/tuf/repository_tool.py
index ef20c19e..21fc4630 100755
--- a/tuf/repository_tool.py
+++ b/tuf/repository_tool.py
@@ -446,7 +446,7 @@ def dirty_roles(self):
       None.
     """
 
-    logger.info('Dirty roles: ' + str(tuf.roledb.get_dirty_roles(self._repository_name)))
+    logger.info('Dirty roles: ' + str(sorted(tuf.roledb.get_dirty_roles(self._repository_name))))