diff --git a/src/etc/inc/config.inc b/src/etc/inc/config.inc
index 8163bccfb..d57ec1e39 100644
--- a/src/etc/inc/config.inc
+++ b/src/etc/inc/config.inc
@@ -197,7 +197,20 @@ function write_config($desc = '', $backup = true)
         }
     }
 
-    plugins_interfaces();
+    /**
+     * XXX: Temporary construction.
+     *      When called via a legacy interface configure page, we might want to register new interfaces, but
+     *      in cases we just want to save our changes (not related to interfaces), we risk raising errors for
+     *      missing imports.
+     *      Eventually relevant callers should call 'interface invoke registration', which is the same as
+     *      mvc components use now (but can't be called here without side effects)
+     */
+    try {
+        plugins_interfaces();
+    } catch (Throwable $e) {
+        null;
+    }
+
 
     $cnf = OPNsense\Core\Config::getInstance();
     $cnf->fromArray($config);