diff --git a/tools/Makefile b/tools/Makefile
index c93d17a..c26b631 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -106,6 +106,7 @@
 			stm32image.o \
 			$(ROCKCHIP_OBS) \
 			socfpgaimage.o \
+			lib/crc16.o \
 			lib/sha1.o \
 			lib/sha256.o \
 			common/hash.o \