diff --git a/contrib/vim/hgcommand.vim b/contrib/vim/hgcommand.vim
--- a/contrib/vim/hgcommand.vim
+++ b/contrib/vim/hgcommand.vim
@@ -372,7 +372,7 @@ function! s:HGGetStatusVars(revisionVar,
       let revision="ADDED"
     else
       " The file is tracked, we can try to get is revision number
-      let hgCommand = <SID>HGGetOption("HGCommandHGExec", "hg") . " parents -b  "
+      let hgCommand = <SID>HGGetOption("HGCommandHGExec", "hg") . " parents "
       let statustext=system(hgCommand)
       if(v:shell_error)
           return ""
diff --git a/contrib/zsh_completion b/contrib/zsh_completion
--- a/contrib/zsh_completion
+++ b/contrib/zsh_completion
@@ -519,6 +519,7 @@ typeset -A _hg_cmd_globals
 _hg_qguards() {
   typeset -a guards
   local guard
+  compset -P "+|-"
   _hg_cmd qselect -s | while read guard
   do
     guards+=(${guard#(+|-)})