diff --git a/src/plugins/vuex.ts b/src/plugins/vuex.ts
index cc82fc5f8d982d2b21096f685037ffb88174b5b0..dee87f1f45a263ba46bfa67766c4bc3094e354cb 100644
--- a/src/plugins/vuex.ts
+++ b/src/plugins/vuex.ts
@@ -4,13 +4,13 @@ import { store } from '../store'
 
 export interface VuexAPIOptions {
   stateKey: 'instanceUrl' | string
-  mutation: 'instanceUrl' | string
+  mutation: 'instance/instanceUrl' | string
 }
 
 export const createVuexAPI = (vuexPluginOptions: Partial<VuexAPIOptions> = {}): Plugin<any> => (vuexStore) => {
   const options: VuexAPIOptions = {
     stateKey: 'instanceUrl',
-    mutation: 'instanceUrl',
+    mutation: 'instance/instanceUrl',
     ...vuexPluginOptions
   }