diff --git a/debian/monitoring-plugins-basic.postinst b/debian/monitoring-plugins-basic.postinst
index 75bde3e..a753cba 100644
--- a/debian/monitoring-plugins-basic.postinst
+++ b/debian/monitoring-plugins-basic.postinst
@@ -1,4 +1,6 @@
-#!/bin/sh -e
+#!/bin/sh
+
+set -e
 
 templdir=/usr/share/monitoring-plugins/templates-basic
 . /usr/share/monitoring-plugins/dpkg/functions
diff --git a/debian/monitoring-plugins-basic.postrm.in b/debian/monitoring-plugins-basic.postrm.in
index 3e85a5d..b65cc9d 100644
--- a/debian/monitoring-plugins-basic.postrm.in
+++ b/debian/monitoring-plugins-basic.postrm.in
@@ -1,4 +1,6 @@
-#!/bin/sh -e
+#!/bin/sh
+
+set -e
 
 BASIC_PLUGINS="@BASIC_PLUGINS@"
 
diff --git a/debian/monitoring-plugins-standard.postinst b/debian/monitoring-plugins-standard.postinst
index 8cf6b95..d4dd594 100644
--- a/debian/monitoring-plugins-standard.postinst
+++ b/debian/monitoring-plugins-standard.postinst
@@ -1,4 +1,6 @@
-#!/bin/sh -e
+#!/bin/sh
+
+set -e
 
 . /usr/share/monitoring-plugins/dpkg/functions
 templdir=/usr/share/monitoring-plugins/templates-standard
diff --git a/debian/monitoring-plugins-standard.postrm.in b/debian/monitoring-plugins-standard.postrm.in
index 903df45..a7ae07b 100644
--- a/debian/monitoring-plugins-standard.postrm.in
+++ b/debian/monitoring-plugins-standard.postrm.in
@@ -1,4 +1,6 @@
-#!/bin/sh -e
+#!/bin/sh
+
+set -e
 
 STD_PLUGINS="@STD_PLUGINS@"