diff --git a/src/client/app/desktop/api/update-avatar.ts b/src/client/app/desktop/api/update-avatar.ts
index e9d92d1eb..f08e8a2b4 100644
--- a/src/client/app/desktop/api/update-avatar.ts
+++ b/src/client/app/desktop/api/update-avatar.ts
@@ -16,7 +16,7 @@ export default (os: OS) => {
 					text: '%i18n:common.got-it%'
 				}]
 			});
-			reject();
+			return reject('invalid-filetype');
 		}
 
 		const w = os.new(CropWindow, {
diff --git a/src/client/app/desktop/api/update-banner.ts b/src/client/app/desktop/api/update-banner.ts
index e8fa35149..42c9d6934 100644
--- a/src/client/app/desktop/api/update-banner.ts
+++ b/src/client/app/desktop/api/update-banner.ts
@@ -16,7 +16,7 @@ export default (os: OS) => {
 					text: '%i18n:common.got-it%'
 				}]
 			});
-			reject();
+			return reject('invalid-filetype');
 		}
 
 		const w = os.new(CropWindow, {