diff --git a/lib/libc/xdr/Makefile.inc b/lib/libc/xdr/Makefile.inc
index fc85212184d1..d41fb721cf9c 100644
--- a/lib/libc/xdr/Makefile.inc
+++ b/lib/libc/xdr/Makefile.inc
@@ -1,10 +1,7 @@
 #	@(#)Makefile	5.11 (Berkeley) 9/6/90
 
 .PATH: ${.CURDIR}/xdr ${.CURDIR}/.
-SRCS+=	xdr.c xdr_array.c xdr_mem.c \
+SRCS+=	xdr.c xdr_array.c xdr_float.c xdr_mem.c \
 	xdr_rec.c xdr_reference.c xdr_stdio.c
 
 MAN3+=	xdr/xdr.3
-
-UNSUPPORTED+=	xdr_float.c
-