diff --git a/insert_authorized_keys.sh b/insert_authorized_keys.sh
index dd87b4b..15f8a6a 100755
--- a/insert_authorized_keys.sh
+++ b/insert_authorized_keys.sh
@@ -1,4 +1,4 @@
-#/bin/bash
+#!/bin/bash
 
 set -e
 set -x