--- a/check_lm_sensors/src/check_lm_sensors
+++ b/check_lm_sensors/src/check_lm_sensors
@@ -1,4 +1,4 @@
-#!perl
+#!/usr/bin/perl
 
 # check_lm_sensors is a Nagios plugin to monitor the values of on board sensors and hard
 # disk temperatures on Linux systems