diff --git a/newlib/libc/locale/lctype.c b/newlib/libc/locale/lctype.c
index 3f118e98c7..a07ab68124 100644
--- a/newlib/libc/locale/lctype.c
+++ b/newlib/libc/locale/lctype.c
@@ -25,12 +25,7 @@
 
 #define LCCTYPE_SIZE (sizeof(struct lc_ctype_T) / sizeof(char *))
 
-#ifdef __CYGWIN__
-/* Cygwin uses __utf8_mbtowc() by default, therefore mb_cur_max := 6 */
-static char	numone[] = { '\x06', '\0'};
-#else
 static char	numone[] = { '\1', '\0'};
-#endif
 
 const struct lc_ctype_T _C_ctype_locale = {
 	"ASCII",			/* codeset */