diff --git a/newlib/libc/include/sys/types.h b/newlib/libc/include/sys/types.h
index 33c3e3ecf..feea7af05 100644
--- a/newlib/libc/include/sys/types.h
+++ b/newlib/libc/include/sys/types.h
@@ -91,7 +91,7 @@ typedef	quad_t *	qaddr_t;
 #endif
 
 /* These types are required by netinet/ *.h on Cygwin */
-#if __BSD_VISIBLE || defined(__CYGWIN__)
+#if __MISC_VISIBLE || defined(__CYGWIN__)
 #ifndef _BSDTYPES_DEFINED
 /* also defined in mingw/gmon.h and in w32api/winsock[2].h */
 #ifndef __u_char_defined