diff --git a/thermal/1.0/default/Android.mk b/thermal/1.0/default/Android.mk
index 9039e9f..72c46af 100644
--- a/thermal/1.0/default/Android.mk
+++ b/thermal/1.0/default/Android.mk
@@ -17,6 +17,7 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
 LOCAL_MODULE := android.hardware.thermal@1.0-service
 LOCAL_INIT_RC := android.hardware.thermal@1.0-service.rc
 LOCAL_SRC_FILES := \