diff --git a/openwrt/target/jffs2/jffs2root.mk b/openwrt/target/jffs2/jffs2root.mk
index 450c741f72..c1d31e4106 100644
--- a/openwrt/target/jffs2/jffs2root.mk
+++ b/openwrt/target/jffs2/jffs2root.mk
@@ -7,10 +7,11 @@
 MTD_DIR:=$(BUILD_DIR)/mtd-20050122.orig
 MTD_SOURCE=mtd_20050122.orig.tar.gz
 MTD_SITE=http://ftp.debian.org/debian/pool/main/m/mtd
+MTD_MD5SUM:=1f42c2cae08eb9e7b52d0c188f8d6338
 MKFS_JFFS2=$(shell which mkfs.jffs2 2>/dev/null || echo $(MTD_DIR)/util/mkfs.jffs2)
 
 $(DL_DIR)/$(MTD_SOURCE):
-	$(SCRIPT_DIR)/download.pl $(DL_DIR) $(MTD_SOURCE) x $(MTD_SITE)
+	$(SCRIPT_DIR)/download.pl $(DL_DIR) $(MTD_SOURCE) $(MTD_MD5SUM) $(MTD_SITE)
 
 $(MTD_DIR)/.unpacked: $(DL_DIR)/$(MTD_SOURCE)
 	zcat $(DL_DIR)/$(MTD_SOURCE) | tar -C $(BUILD_DIR) -xvf -