diff --git a/audio/effect/2.0/default/Android.mk b/audio/effect/2.0/default/Android.mk
index 18076ed..1541d41 100644
--- a/audio/effect/2.0/default/Android.mk
+++ b/audio/effect/2.0/default/Android.mk
@@ -2,6 +2,7 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := android.hardware.audio.effect@2.0-impl
+LOCAL_PROPRIETARY_MODULE := true
 LOCAL_MODULE_RELATIVE_PATH := hw
 LOCAL_SRC_FILES := \
     AcousticEchoCancelerEffect.cpp \