diff --git a/resources/check_resmon_metric b/resources/check_resmon_metric
index cc23aaf8f0e2f1f7d729bdf444b94175dea98e4d..914e7c89ad827486b14b4e3ae9be43d695756e8b 100755
--- a/resources/check_resmon_metric
+++ b/resources/check_resmon_metric
@@ -196,8 +196,9 @@ use utils qw($TIMEOUT %ERRORS &print_revision &support);
 delete @ENV{'PATH', 'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};
 
 my ($port, $host, $module, $check, $age, $warning, $critical, $equals, $regex,
-    $metric, $url, $allow_absent, $keep_unknown) = (81, undef, undef, undef, 0, undef, undef,
-    undef, undef, 0, 0);
+    $metric, $url, $allow_absent, $keep_unknown) =
+   (81,    undef, undef,   undef,  0,    undef,    undef,     undef,   undef,
+    0,       0,    0,             0);
 
 sub help {
     print "Usage: $0 [options]\n";