diff --git a/metadata/com.nutomic.syncthingandroid.txt b/metadata/com.nutomic.syncthingandroid.txt
index d3eec4f86d..b4cf77f085 100644
--- a/metadata/com.nutomic.syncthingandroid.txt
+++ b/metadata/com.nutomic.syncthingandroid.txt
@@ -780,11 +780,20 @@ Build:1.1.2.1,4167
         apt install -y -t testing golang-go
     gradle=yes
     output=app/build/outputs/apk/release/app-release-unsigned.apk
-    rm=syncthing/src/github.com/syncthing/syncthing/lib/model/testdata
     prebuild=sed -i -e '/signingConfig/d' app/build.gradle
+    scanignore=syncthing/src/github.com/syncthing/syncthing/lib/model/testdata
     ndk=r15c
     preassemble=buildNative
 
+Maintainer Notes:
+The submodule in syncthing/src/github.com/syncthing/syncthing must be
+pristine, as the version/release information is taken from git.
+The ignored directory
+syncthing/src/github.com/syncthing/syncthing/lib/model/testdata
+contains pre-generated data for testing and is thus not involved in the build
+process.
+.
+
 Auto Update Mode:Version %v
 Update Check Mode:Tags ^[0-9.]*$
 Current Version:1.1.2.1