diff --git a/Makefile.am b/Makefile.am
index c48a277..984a5d4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -7,7 +7,7 @@
 include_HEADERS = libmctp.h
 
 if LIBMCTP_BINDING_serial
-libmctp_la_SOURCES += serial.c
+libmctp_la_SOURCES += serial.c crc-16-ccitt.c
 include_HEADERS += libmctp-serial.h
 endif