diff --git a/system/src/Grav/Common/Plugin.php b/system/src/Grav/Common/Plugin.php
index b2084205f..96084b0ed 100644
--- a/system/src/Grav/Common/Plugin.php
+++ b/system/src/Grav/Common/Plugin.php
@@ -188,19 +188,18 @@ class Plugin implements EventSubscriberInterface
      * Persists to disk the plugin parameters currently stored in the Grav Config object
      *
      * @param string $plugin_name   The name of the plugin whose config it should store.
-     *                              If omitted, saves the current plugin
      *
      * @return true
      */
-    protected function saveConfig($plugin_name = '') {
+    public static function saveConfig($plugin_name) {
         if (!$plugin_name) {
-            $plugin_name = $this->name;
+            return false;
         }
 
-        $locator = $this->grav['locator'];
+        $locator = Grav::instance()['locator'];
         $filename = 'config://plugins/' . $plugin_name . '.yaml';
         $file = YamlFile::instance($locator->findResource($filename, true, true));
-        $content = $this->grav['config']->get('plugins.' . $plugin_name);
+        $content = Grav::instance()['config']->get('plugins.' . $plugin_name);
         $file->save($content);
         $file->free();