diff --git a/lib/libc/net/__dn_comp.c b/lib/libc/net/__dn_comp.c
index b3baa607cd66..200e25d8b817 100644
--- a/lib/libc/net/__dn_comp.c
+++ b/lib/libc/net/__dn_comp.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: __dn_comp.c,v 1.1 1997/04/22 06:55:37 mrg Exp $	*/
+/*	$NetBSD: __dn_comp.c,v 1.2 1997/04/22 18:53:16 cgd Exp $	*/
 
 /*
  * written by matthew green, 22/04/97.
@@ -12,9 +12,10 @@ __indr_reference(__dn_comp,dn_comp);
 #else
 
 #include <sys/types.h>
-#Include <resolv.h>
+#include <netinet/in.h>
+#include <resolv.h>
 
-extern int __dn_comp __P((const char *, u_char *, u_char *, u_char *, int));
+extern int __dn_comp __P((const char *, u_char *, int, u_char **, u_char **));
 
 #undef dn_comp
 int