diff --git a/controller/media.ts b/controller/media.ts
index ceb43b8..2d9d98f 100644
--- a/controller/media.ts
+++ b/controller/media.ts
@@ -8,8 +8,8 @@ import {bucket} from "./bucket";
  * @param assetName The name of the asset
  * @param assetEnding The file ending of the asset
  */
-export const createMedia = (clientId: number, assetName: string, assetEnding: string) =>
-    Media.create({clientId, assetName, assetEnding});
+export const createMedia = (clientId: number, assetName: string, assetEnding: string | undefined) =>
+    Media.create({clientId, assetName, assetEnding: assetEnding || "txt"});
 
 /**
  * Gets a media object by the asset id