diff --git a/check_nagios/check_nagios_configuration b/check_nagios/check_nagios_configuration
index 3e7ef74..08c0ea5 100755
--- a/check_nagios/check_nagios_configuration
+++ b/check_nagios/check_nagios_configuration
@@ -6,6 +6,7 @@ MESSAGE="Nagios configuration is valid"
 EXIT_CODE=3
 
 TMPFILE=`mktemp`
+trap "rm -f $TMPFILE" EXIT
 nagios -v /etc/nagios/nagios.cfg > $TMPFILE
 RESULT=$?