diff --git a/src/etc/rc.filter_configure b/src/etc/rc.filter_configure
index 9e022d4ef..2a907f305 100755
--- a/src/etc/rc.filter_configure
+++ b/src/etc/rc.filter_configure
@@ -35,6 +35,6 @@ require_once("interfaces.inc");
 
 exit_on_bootup();
 
-$event_arg = count($argv) >= 1 ? $argv[1] : '';
+$event_arg = count($argv) > 1 ? $argv[1] : '';
 
 filter_configure_sync(true, $event_arg != 'skip_alias');