diff --git a/sys/lib/libkern/arch/x86_64/Makefile.inc b/sys/lib/libkern/arch/x86_64/Makefile.inc
index 302da8310874..df02e05874cc 100644
--- a/sys/lib/libkern/arch/x86_64/Makefile.inc
+++ b/sys/lib/libkern/arch/x86_64/Makefile.inc
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile.inc,v 1.1 2001/06/19 00:22:45 fvdl Exp $
+#	$NetBSD: Makefile.inc,v 1.2 2002/11/25 00:55:22 fvdl Exp $
 
 SRCS+=	__main.c __assert.c \
 	imax.c imin.c lmax.c lmin.c max.c min.c ulmax.c ulmin.c \
@@ -7,6 +7,6 @@ SRCS+=	__main.c __assert.c \
 	memchr.S memcmp.S memcpy.S memmove.S memset.S \
 	strcat.S strchr.S strcmp.S strcasecmp.c \
 	strcpy.S strlen.S strncasecmp.c \
-	strncmp.c strncpy.c strrchr.S \
+	strncmp.c strncpy.c strrchr.S strtoul.c \
 	scanc.S skpc.S \
 	random.S