Declare private_platform_apis to build on P
diff --git a/NightMode/Android.mk b/NightMode/Android.mk
index 48816a3..28b3298 100644
--- a/NightMode/Android.mk
+++ b/NightMode/Android.mk
@@ -4,4 +4,5 @@
 LOCAL_PACKAGE_NAME := treble-overlay-NightMode
 LOCAL_MODULE_PATH := $(TARGET_OUT)/overlay
 LOCAL_IS_RUNTIME_RESOURCE_OVERLAY := true
+LOCAL_PRIVATE_PLATFORM_APIS := true
 include $(BUILD_PACKAGE)