diff --git a/manifest_xml.py b/manifest_xml.py
index 817a1c8..e40e6fa 100644
--- a/manifest_xml.py
+++ b/manifest_xml.py
@@ -45,6 +45,7 @@
   """Project defaults within the manifest."""
 
   revisionExpr = None
+  destBranchExpr = None
   remote = None
   sync_j = 1
   sync_c = False