diff --git a/bin/git-unmerged b/bin/git-unmerged
old mode 100755
new mode 100644
index d9f2175..28f019b
--- a/bin/git-unmerged
+++ b/bin/git-unmerged
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # Opens gitk (set GIT_VISUAL to override), showing all heads in the local repo and on github,
 # as far as they have not yet been merged into master. The beta head is omitted to make