diff --git a/tests/foo/1.0/default/Android.bp b/tests/foo/1.0/default/Android.bp
index 952f25d..f4a80d5 100644
--- a/tests/foo/1.0/default/Android.bp
+++ b/tests/foo/1.0/default/Android.bp
@@ -3,6 +3,7 @@
 cc_library_shared {
     name: "android.hardware.tests.foo@1.0-impl",
     relative_install_path: "hw",
+    proprietary: true,
     srcs: [
         "Foo.cpp",
     ],