diff --git a/config/config.h.in b/config/config.h.in
index f2149bf083..43494ef9a2 100644
--- a/config/config.h.in
+++ b/config/config.h.in
@@ -85,7 +85,6 @@
 #define HAVE_UTIME 1
 #define HAVE_UTIME_H 1
 #define HAVE_UTIMES 1
-#define HAVE_WCTYPE_H 1
 #cmakedefine HAVE_WORKING_LIBINTL
 #define RETSIGTYPE void
 #define SIGRETURN return
diff --git a/src/vim.h b/src/vim.h
index f297ac2dde..0438d49208 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -137,9 +137,7 @@ typedef unsigned long u8char_T;     /* long should be 32 bits or more */
 #include <assert.h>
 
 #include <inttypes.h>
-#ifdef HAVE_WCTYPE_H
-# include <wctype.h>
-#endif
+#include <wctype.h>
 #include <stdarg.h>
 
 #if defined(HAVE_SYS_SELECT_H) && \