diff --git a/modules/usbaudio/Android.mk b/modules/usbaudio/Android.mk
index 9df1e79..b36bf9f 100644
--- a/modules/usbaudio/Android.mk
+++ b/modules/usbaudio/Android.mk
@@ -18,6 +18,7 @@
 
 LOCAL_MODULE := audio.usb.default
 LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
 LOCAL_SRC_FILES := \
 	audio_hal.c
 LOCAL_C_INCLUDES += \