diff --git a/lib/Makefile b/lib/Makefile
index 56b4fd4640da..493a8234ed59 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -10,7 +10,7 @@ SUBDIR=csu/${MACHINE}
 .endif
 
 # XXX MISSING:		libmp libplot
-SUBDIR+=	libc libcompat libcrypt libcurses libedit libkvm libmd \
+SUBDIR+=	libc libcompat libcrypt libcurses libedit libf2c libkvm libmd \
 	libmytinfo libncurses libresolv librpcsvc libskey libtelnet \
 	libtermcap libutil liby