diff --git a/lxc/executors/awk b/lxc/executors/awk
index 67cdee8..dafa525 100755
--- a/lxc/executors/awk
+++ b/lxc/executors/awk
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 cd /tmp/$2
 timeout -s KILL 2 sed "/___code___/Q" code.code > code.stdin
 timeout -s KILL 2 sed "1,/___code___/d" code.code > code.awk