diff --git a/bin/ksh/config.h b/bin/ksh/config.h
index 672af9677eb7..c729798ba211 100644
--- a/bin/ksh/config.h
+++ b/bin/ksh/config.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: config.h,v 1.23 2017/06/22 23:26:17 kamil Exp $	*/
+/*	$NetBSD: config.h,v 1.24 2017/06/22 23:27:53 kamil Exp $	*/
 
 /* config.h.  Generated automatically by configure.  */
 /* config.h.in.  Generated automatically from configure.in by autoheader.  */
@@ -244,9 +244,6 @@
 /* Define if you have the sigsetjmp function.  */
 #define HAVE_SIGSETJMP 1
 
-/* Define if you have the strcasecmp function.  */
-#define HAVE_STRCASECMP 1
-
 /* Define if you have the strerror function.  */
 #define HAVE_STRERROR 1
 
diff --git a/bin/ksh/sh.h b/bin/ksh/sh.h
index ea2fc28e5050..4c47a39892c8 100644
--- a/bin/ksh/sh.h
+++ b/bin/ksh/sh.h
@@ -1,10 +1,10 @@
-/*	$NetBSD: sh.h,v 1.17 2017/06/22 23:26:17 kamil Exp $	*/
+/*	$NetBSD: sh.h,v 1.18 2017/06/22 23:27:53 kamil Exp $	*/
 
 /*
  * Public Domain Bourne/Korn shell
  */
 
-/* $Id: sh.h,v 1.17 2017/06/22 23:26:17 kamil Exp $ */
+/* $Id: sh.h,v 1.18 2017/06/22 23:27:53 kamil Exp $ */
 
 #include "config.h"	/* system and option configuration info */
 
@@ -24,11 +24,6 @@
 #include <unistd.h>
 #include <string.h>
 
-#ifndef HAVE_STRCASECMP
-int strcasecmp ARGS((const char *s1, const char *s2));
-int strncasecmp ARGS((const char *s1, const char *s2, int n));
-#endif /* HAVE_STRCASECMP */
-
 #ifdef HAVE_MEMORY_H
 # include <memory.h>
 #endif