diff --git a/lib/sl/sl_locl.h b/lib/sl/sl_locl.h
index 081703273..1ea458839 100644
--- a/lib/sl/sl_locl.h
+++ b/lib/sl/sl_locl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden).
  * All rights reserved.
  * 
@@ -38,9 +38,13 @@
 
 /* $Id$ */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdarg.h>
 
 #include <roken.h>