diff --git a/media/libeffects/downmix/Android.mk b/media/libeffects/downmix/Android.mk
index 09793d1..73f6ef5 100644
--- a/media/libeffects/downmix/Android.mk
+++ b/media/libeffects/downmix/Android.mk
@@ -23,4 +23,5 @@
 LOCAL_CFLAGS += -fvisibility=hidden
 LOCAL_CFLAGS += -Wall -Werror
 
+LOCAL_HEADER_LIBRARIES += libhardware_headers
 include $(BUILD_SHARED_LIBRARY)