diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 28b8ab3..0b8cec3 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -106,4 +106,7 @@
     ],
 }
 
-subdirs = ["tests"]
+subdirs = [
+    "tests",
+    "tools",
+]