diff --git a/src/etc/rc.configure_firmware b/src/etc/rc.configure_firmware
index 01ae32f8b..48fbf98d0 100755
--- a/src/etc/rc.configure_firmware
+++ b/src/etc/rc.configure_firmware
@@ -47,5 +47,5 @@ system_firmware_configure(true);
 system_login_configure(true);
 
 /* flush cache */
-(new OPNsense\Core\ACL())->persist();
-(new OPNsense\Base\Menu\MenuSystem())->persist();
+(new OPNsense\Core\ACL())->invalidateCache();
+(new OPNsense\Base\Menu\MenuSystem())->invalidateCache();
diff --git a/src/opnsense/mvc/app/models/OPNsense/Base/Menu/MenuSystem.php b/src/opnsense/mvc/app/models/OPNsense/Base/Menu/MenuSystem.php
index a58ab7060..472c0b933 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Base/Menu/MenuSystem.php
+++ b/src/opnsense/mvc/app/models/OPNsense/Base/Menu/MenuSystem.php
@@ -94,6 +94,16 @@ class MenuSystem
         return $node->append($id, $properties);
     }
 
+    /**
+     * invalidate cache, removes cache file from disk if available, which forces the next request to persist() again
+     */
+    public function invalidateCache()
+    {
+        if (file_exists($this->menuCacheFilename)) {
+            unlink($this->menuCacheFilename);
+        }
+    }
+
     /**
      * Load and persist Menu configuration to disk.
      * @param bool $nowait when the cache is locked, skip waiting for it to become available.
diff --git a/src/opnsense/mvc/app/models/OPNsense/Core/ACL.php b/src/opnsense/mvc/app/models/OPNsense/Core/ACL.php
index 8e91e3714..5aea77830 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Core/ACL.php
+++ b/src/opnsense/mvc/app/models/OPNsense/Core/ACL.php
@@ -304,6 +304,16 @@ class ACL
         return false;
     }
 
+    /**
+     * invalidate cache, removes cache file from disk if available, which forces the next request to persist() again
+     */
+    public function invalidateCache()
+    {
+        if (file_exists($this->aclCacheFilename)) {
+            unlink($this->aclCacheFilename);
+        }
+    }
+
     /**
      * check if pluggable ACL's are expired
      * @return bool is expired