diff --git a/mmcutils/Android.mk b/mmcutils/Android.mk
index f1fe294..8b8b4a9 100644
--- a/mmcutils/Android.mk
+++ b/mmcutils/Android.mk
@@ -4,6 +4,10 @@ ifeq ($(TARGET_ARCH),arm)
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
+ifneq ($BOARD_HAS_LARGE_FILESYSTEM,)
+LOCAL_CFLAGS += -DBOARD_HAS_LARGE_FILESYSTEM
+endif
+
 LOCAL_SRC_FILES := \
 	mmcutils.c