diff --git a/wgetopt.c b/wgetopt.c
index 6a1bd7b2a..0c18198c2 100644
--- a/wgetopt.c
+++ b/wgetopt.c
@@ -49,12 +49,6 @@ License along with the GNU C Library; see the file COPYING.LIB.  If
 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
 Cambridge, MA 02139, USA.  */
 
-/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
-   Ditto for AIX 3.2 and <stdlib.h>.  */
-#ifndef _NO_PROTO
-#define _NO_PROTO
-#endif
-
 #include "config.h"
 
 #if !defined (__STDC__) || !__STDC__