diff --git a/src/stores/CustomRoomTagStore.js b/src/stores/CustomRoomTagStore.js
index 0670ed0e6c..1983fa7462 100644
--- a/src/stores/CustomRoomTagStore.js
+++ b/src/stores/CustomRoomTagStore.js
@@ -68,7 +68,7 @@ class CustomRoomTagStore extends EventEmitter {
     addListener(callback) {
         this.on("change", callback);
         return {
-            remove() {
+            remove: () => {
                 this.removeListener("change", callback);
             },
         };