diff --git a/Makefile.am b/Makefile.am
index d630078..fc8e937 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -12,7 +12,7 @@
 endif
 
 if LIBMCTP_BINDING_astlpc
-libmctp_la_SOURCES += astlpc.c
+libmctp_la_SOURCES += astlpc.c crc32.c
 include_HEADERS += libmctp-astlpc.h
 endif