diff --git a/buildserver/provision-android-sdk b/buildserver/provision-android-sdk
index e5a4202a..54f89cb6 100644
--- a/buildserver/provision-android-sdk
+++ b/buildserver/provision-android-sdk
@@ -82,6 +82,8 @@ echo y | $ANDROID_HOME/tools/bin/sdkmanager "extras;m2repository;com;android;sup
 echo y | $ANDROID_HOME/tools/bin/sdkmanager "extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2"
 
 chmod -R a+rX $ANDROID_HOME/
+chgrp vagrant $ANDROID_HOME
+chmod g+w $ANDROID_HOME
 find $ANDROID_HOME/ -type f -executable -print0 | xargs -0 chmod a+x
 
 # allow gradle to install newer build-tools versions