diff --git a/metadata/im.vector.alpha.txt b/metadata/im.vector.alpha.txt
index d51044d688..503991761d 100644
--- a/metadata/im.vector.alpha.txt
+++ b/metadata/im.vector.alpha.txt
@@ -678,7 +678,6 @@ Build:0.8.13,81300
         find . -name *.aar -exec truncate -s 0 {} \;
     build=pushd $$olmsdk$$/android && \
         echo ndk.dir=$$NDK$$ > local.properties && \
-        rm gradle.properties && \
         gradle assembleRelease && \
         popd && \
         cp $$olmsdk$$/android/olm-sdk/build/outputs/aar/olm-sdk-release-2.3.0.aar libs/olm-sdk.aar && \
@@ -762,6 +761,7 @@ Build:0.8.15,81500
         cp $$matrixsdk$$/matrix-sdk/build/outputs/aar/matrix-sdk-release-*.aar libs/matrix-sdk.aar
 
 Maintainer Notes:
+TODO: update ndk version to latest for next build!
 Upstream puts their library aars inside the repo, we need build them our self. We truncate instead of deleting them such that the initial gradle clean is successful.
 jitsi-meet needs react-native which we get via npm. This pulls in a few prebuilt binaries for now :-/.
 We also need to provide an up to date version of npm and nodejs, neither of which can be found in debian jessie, so we download the upstream provided nodejs bundle which includes npm.