diff --git a/src/git.coffee b/src/git.coffee
index e177c0f..fc58005 100644
--- a/src/git.coffee
+++ b/src/git.coffee
@@ -36,6 +36,8 @@ module.exports = Git = (git_dir, dot_git) ->
     prefix              = "refs/#{type}s/"
     
     git "show-ref", (err, text) ->
+      # ignore error code 1: means no match
+      err = null if err?.code is 1
       matches = []
       for line in (text || "").split("\n")
         continue if !line