--- a/tests/test-topic-stack.t	Fri Sep 01 15:09:59 2017 +0530
+++ b/tests/test-topic-stack.t	Fri Sep 15 22:48:55 2017 +0530
@@ -66,7 +66,7 @@
    * other
   $ hg stack
   ### topic: other
-  ### branch: 
+  ### branch: default
 
   $ hg up foo
   switching to topic foo
@@ -224,7 +224,7 @@
 
   $ hg topic --clear
   $ hg stack
-  ### branch: 
+  ### branch: default
 
 Test "t#" reference
 -------------------