diff --git a/frontend/android/fastlane/Fastfile b/frontend/android/fastlane/Fastfile
index 5b37b24..de53656 100644
--- a/frontend/android/fastlane/Fastfile
+++ b/frontend/android/fastlane/Fastfile
@@ -21,6 +21,8 @@ platform :android do
       track: 'alpha',
       skip_upload_apk: true,
       skip_upload_changelogs: true,
+      aab: "build/app/outputs/bundle/release/app-release.aab",
+      # this is the default output of flutter build ... --release (in particular it is relative)
       )
   end
 
@@ -37,6 +39,8 @@ platform :android do
       track: "production",
       skip_upload_apk: true,
       skip_upload_changelogs: true,
+      aab: "build/app/outputs/bundle/release/app-release.aab",
+      # this is the default output of flutter build ... --release (in particular it is relative)
     )
   end
 end