diff --git a/sys/sys/resource.h b/sys/sys/resource.h
index af0d86ddfa92..d7b25d59a713 100644
--- a/sys/sys/resource.h
+++ b/sys/sys/resource.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: resource.h,v 1.18 1998/05/24 19:30:19 kleink Exp $	*/
+/*	$NetBSD: resource.h,v 1.19 1998/12/09 14:39:09 christos Exp $	*/
 
 /*
  * Copyright (c) 1982, 1986, 1993
@@ -93,7 +93,7 @@ struct	rusage {
 
 #define	RLIM_NLIMITS	9		/* number of resource limits */
 
-#define	RLIM_INFINITY	(((u_quad_t)1 << 63) - 1)	/* no limit */
+#define	RLIM_INFINITY	(~((u_quad_t)1 << 63))	/* no limit */
 #define	RLIM_SAVED_MAX	RLIM_INFINITY	/* unrepresentable hard limit */
 #define	RLIM_SAVED_CUR	RLIM_INFINITY	/* unrepresentable soft limit */