diff --git a/plugins/custom/Custom.php b/plugins/custom/Custom.php
index cccdd98..a6e2bec 100755
--- a/plugins/custom/Custom.php
+++ b/plugins/custom/Custom.php
@@ -11,13 +11,23 @@ class Custom extends Plugin
         $this->config = $remote_config["custom"];
         $this->saveConfig();
 
-        $path = dirname(__DIR__) . "/networks/custom.json";
-        file_put_contents($path, json_encode($this->config));
+        $this->updateConfigFile();
     }
 
-    protected function checkConfig(): void
+    private function updateConfigFile()
     {
-        parent::checkConfig();
+        $path = dirname(__DIR__) . "/networks/custom.json";
+        $current_config = @file_get_contents($path);
+        $new_config = json_encode($this->config);
+        if($current_config !== $new_config) {
+            file_put_contents($path, $new_config);
+        }
+    }
+
+    public function onInit(PluginContext $context): void
+    {
+        parent::onInit($context);
+        $this->updateConfigFile();
     }