diff --git a/library/Makefile b/library/Makefile
index 1d3a38a..e878583 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -45,6 +45,7 @@
 		error.o		gcm.o		havege.o		\
 		md.o		md_wrap.o	md2.o			\
 		md4.o		md5.o		net.o			\
+		oid.o									\
 		padlock.o	pbkdf2.o	pem.o			\
 		pkcs11.o								\
 		rsa.o		sha1.o		sha2.o			\