diff --git a/plugins/network/speedport_300 b/plugins/network/speedport_300
index 66de83ef..c7e5d95c 100755
--- a/plugins/network/speedport_300
+++ b/plugins/network/speedport_300
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 #
 # Munin plugin to show the up- / download stream of the actual