diff --git a/build.py b/build.py
index 19523b002..55bac75a6 100755
--- a/build.py
+++ b/build.py
@@ -425,7 +425,7 @@ def cleanup(args):
 
     if 'java' in args.target:
         header('* Cleaning java')
-        execv([gradlew, 'clean'])
+        execv([gradlew, 'app:clean', 'app:shared:clean', 'stub:clean'])
 
 
 def setup_ndk(args):