diff --git a/debian/postinst b/debian/postinst
index 7db878e..55a755d 100644
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,4 +1,6 @@
-#!/bin/sh -e
+#!/bin/sh
+
+set -e
 
 templdir=/usr/share/nagios-snmp-plugins/pluginconfig
 
diff --git a/debian/postrm.in b/debian/postrm.in
index c4dcc12..e48c8cf 100644
--- a/debian/postrm.in
+++ b/debian/postrm.in
@@ -1,4 +1,6 @@
-#!/bin/sh -e
+#!/bin/sh
+
+set -e
 
 PLUGINS="@PLUGINS@"