diff --git a/include/limits.h b/include/limits.h
index 383c5cda087f..251010bca916 100644
--- a/include/limits.h
+++ b/include/limits.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)limits.h	8.2 (Berkeley) 1/4/94
- *	$Id: limits.h,v 1.6 1998/03/04 10:23:24 dufault Exp $
+ *	$Id: limits.h,v 1.7 1998/03/08 17:24:31 dufault Exp $
  */
 
 #ifndef _LIMITS_H_
@@ -78,10 +78,6 @@
 
 #endif
 
-#ifdef _POSIX4_VISIBLE_HISTORICALLY
-#define	AIO_LISTIO_MAX		16
-#endif
-
 #endif /* !_ANSI_SOURCE */
 
 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) || defined(_XOPEN_SOURCE)