diff --git a/usr/lib/security-misc/permission-hardening b/usr/lib/security-misc/permission-hardening
index e9baa7b..b01bdeb 100755
--- a/usr/lib/security-misc/permission-hardening
+++ b/usr/lib/security-misc/permission-hardening
@@ -4,6 +4,7 @@
 ## See the file COPYING for copying conditions.
 
 #set -x
+set -e
 
 exit_code=0