diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php
index 8cc0c4a68..f74ffb947 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php
@@ -357,6 +357,7 @@ class Plugin
      */
     public function iterateFilterRules()
     {
+        ksort($this->filterRules);  /* sort rules by priority */
         foreach ($this->filterRules as $prio => $ruleset) {
             foreach ($ruleset as $rule) {
                  yield $rule;