diff --git a/dashboard/src/views/ConfigPage.vue b/dashboard/src/views/ConfigPage.vue
index 94bb8b575..4147c7623 100644
--- a/dashboard/src/views/ConfigPage.vue
+++ b/dashboard/src/views/ConfigPage.vue
@@ -481,7 +481,7 @@ export default {
       if (!this.fetched) return;
 
       const postData = {
-        config: this.config_data
+        config: JSON.parse(JSON.stringify(this.config_data)),
       };
 
       if (this.isSystemConfig) {