diff --git a/contrib/zsh_completion b/contrib/zsh_completion
--- a/contrib/zsh_completion
+++ b/contrib/zsh_completion
@@ -207,9 +207,9 @@ typeset -A _hg_cmd_globals
   typeset -a heads
   local myrev
 
-  heads=(${(f)"$(_hg_cmd heads --template '{rev}\\n')"})
+  heads=(${(f)"$(_hg_cmd heads --template '{rev}:{branch}\\n')"})
   # exclude own revision
-  myrev=$(_hg_cmd log -r . --template '{rev}\\n')
+  myrev=$(_hg_cmd log -r . --template '{rev}:{branch}\\n')
   heads=(${heads:#$myrev})
 
   (( $#heads )) && _describe -t heads 'heads' heads