diff --git a/winsup/cygwin/include/cygwin/version.h b/winsup/cygwin/include/cygwin/version.h
index 0d55d8292..be50be988 100644
--- a/winsup/cygwin/include/cygwin/version.h
+++ b/winsup/cygwin/include/cygwin/version.h
@@ -34,9 +34,6 @@ details. */
 #define CYGWIN_VERSION_USER_API_VERSION_COMBINED \
   CYGWIN_VERSION_PER_PROCESS_API_VERSION_COMBINED (user_data)
 
-#define CYGWIN_VERSION_CHECK_FOR_USING_BIG_TYPES \
-  (CYGWIN_VERSION_USER_API_VERSION_COMBINED >= 79)
-
 #define CYGWIN_VERSION_CHECK_FOR_USING_ANCIENT_MSGHDR \
   (CYGWIN_VERSION_USER_API_VERSION_COMBINED <= 138)