diff --git a/client/src/mixins/update-selected-class.js b/client/src/mixins/update-selected-class.js
index 4ab9a2c2..c672d752 100644
--- a/client/src/mixins/update-selected-class.js
+++ b/client/src/mixins/update-selected-class.js
@@ -1,13 +1,13 @@
 import ME_QUERY from '@/graphql/gql/queries/meQuery.gql';
 import UPDATE_USER_SETTING from '@/graphql/gql/mutations/updateUserSetting.gql';
 import MY_SCHOOL_CLASS_QUERY from '@/graphql/gql/queries/mySchoolClass.gql';
-import DELETE_MODULE_NODES from '@/graphql/gql/local/mutations/deleteModuleNodes.gql';
+// import DELETE_MODULE_NODES from '@/graphql/gql/local/mutations/deleteModuleNodes.gql';
 import MODULE_DETAILS_QUERY from '@/graphql/gql/queries/modules/moduleDetailsQuery.gql';
 
 export default {
   methods: {
     updateSelectedClass(selectedClass) {
-      const innerApollo = this.$apollo;
+      // const innerApollo = this.$apollo;
       return this.$apollo.mutate({
         mutation: UPDATE_USER_SETTING,
         variables: {