diff --git a/package/system/mtd/src/Makefile b/package/system/mtd/src/Makefile
index 4e6aee8eb5..3f59c91c21 100644
--- a/package/system/mtd/src/Makefile
+++ b/package/system/mtd/src/Makefile
@@ -3,7 +3,7 @@ CFLAGS += -Wall
 
 obj = mtd.o jffs2.o crc32.o
 obj.seama = seama.o md5.o
-obj.ar71xx = trx.o
+obj.ar71xx = trx.o $(obj.seama)
 obj.brcm = trx.o
 obj.brcm47xx = $(obj.brcm)
 obj.brcm63xx = imagetag.o