diff --git a/tools/yaffs2/Makefile b/tools/yaffs2/Makefile
index 344b61a2c..2c6770cac 100644
--- a/tools/yaffs2/Makefile
+++ b/tools/yaffs2/Makefile
@@ -15,6 +15,7 @@ PKG_SOURCE_URL:=git://android.git.kernel.org/platform/external/yaffs2.git
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)
 PKG_SOURCE_VERSION:=d333fc232d7e5ae3370080d5d6f7d88ea9c6b3a1
+PKG_MIRROR_MD5SUM:=8145d4dd9b46face26121f27ad60cc1c
 HOST_BUILD_DIR=$(BUILD_DIR_HOST)/$(PKG_NAME)
 
 include $(INCLUDE_DIR)/host-build.mk