diff --git a/samples/pktgen/pktgen.conf-1-1-rdos b/samples/pktgen/pktgen.conf-1-1-rdos
index fc4e345..2834ac7 100755
--- a/samples/pktgen/pktgen.conf-1-1-rdos
+++ b/samples/pktgen/pktgen.conf-1-1-rdos
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen