diff --git a/samples/pktgen/pktgen.conf-1-1 b/samples/pktgen/pktgen.conf-1-1
index e32782e..bb53983 100755
--- a/samples/pktgen/pktgen.conf-1-1
+++ b/samples/pktgen/pktgen.conf-1-1
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-1-1-flows b/samples/pktgen/pktgen.conf-1-1-flows
index ea859e4..db20ac8 100755
--- a/samples/pktgen/pktgen.conf-1-1-flows
+++ b/samples/pktgen/pktgen.conf-1-1-flows
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-1-1-ip6 b/samples/pktgen/pktgen.conf-1-1-ip6
index 0a81fd9..e22199d 100755
--- a/samples/pktgen/pktgen.conf-1-1-ip6
+++ b/samples/pktgen/pktgen.conf-1-1-ip6
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-1-1-ip6-rdos b/samples/pktgen/pktgen.conf-1-1-ip6-rdos
index 21c3b15..58dd052 100755
--- a/samples/pktgen/pktgen.conf-1-1-ip6-rdos
+++ b/samples/pktgen/pktgen.conf-1-1-ip6-rdos
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen
 
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
 
diff --git a/samples/pktgen/pktgen.conf-1-2 b/samples/pktgen/pktgen.conf-1-2
index dfea8e6..b519dab 100755
--- a/samples/pktgen/pktgen.conf-1-2
+++ b/samples/pktgen/pktgen.conf-1-2
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-2-1 b/samples/pktgen/pktgen.conf-2-1
index 5d2fe4c..6f57a558 100755
--- a/samples/pktgen/pktgen.conf-2-1
+++ b/samples/pktgen/pktgen.conf-2-1
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-2-2 b/samples/pktgen/pktgen.conf-2-2
index 474f200..aa32252 100755
--- a/samples/pktgen/pktgen.conf-2-2
+++ b/samples/pktgen/pktgen.conf-2-2
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 #modprobe pktgen