diff --git a/tools/atree/Android.bp b/tools/atree/Android.bp
index 3c3a8ef..5fbe042 100644
--- a/tools/atree/Android.bp
+++ b/tools/atree/Android.bp
@@ -9,5 +9,6 @@
         "files.cpp",
         "fs.cpp",
     ],
+    cflags: ["-Wall", "-Werror"],
     static_libs: ["libhost"],
 }