diff --git a/src/helpers/settingsHelper.ts b/src/helpers/settingsHelper.ts
index 73d94d6..aea7584 100644
--- a/src/helpers/settingsHelper.ts
+++ b/src/helpers/settingsHelper.ts
@@ -265,9 +265,7 @@ export default abstract class SettingHelper {
    * @param oldValue The old value
    */
   private static notifyListeners(key: SettingString, newValue: any, oldValue: any): void {
-    if (!this.listeners.has(key)) return;
-
-    const callbacks = this.listeners.get(key)!;
+    const callbacks = this.listeners.get(key) ?? [];
     for (const callback of callbacks) {
       try {
         callback(newValue, oldValue);
@@ -276,7 +274,7 @@ export default abstract class SettingHelper {
       }
     }
 
-    const topicCallbacks = this.topicListeners.get(key.split(".")[0] as SettingTopic)!;
+    const topicCallbacks = this.topicListeners.get(key.split(".")[0] as SettingTopic) ?? [];
     for (const callback of topicCallbacks) {
       try {
         callback();