diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 35e4356..e47d2b8 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -111,4 +111,7 @@
     ],
 }
 
-subdirs = ["tests"]
+subdirs = [
+    "tests",
+    "tools",
+]