diff --git a/graphics/mapper/2.0/default/Android.bp b/graphics/mapper/2.0/default/Android.bp
index c3d2281..ca15961 100644
--- a/graphics/mapper/2.0/default/Android.bp
+++ b/graphics/mapper/2.0/default/Android.bp
@@ -15,6 +15,7 @@
 
 cc_library_shared {
     name: "android.hardware.graphics.mapper@2.0-impl",
+    proprietary: true,
     relative_install_path: "hw",
     srcs: ["GrallocMapper.cpp"],
     cppflags: ["-Wall", "-Wextra"],