diff --git a/winsup/cygwin/winsup.h b/winsup/cygwin/winsup.h
index 40649f1be..233458d2c 100644
--- a/winsup/cygwin/winsup.h
+++ b/winsup/cygwin/winsup.h
@@ -345,7 +345,6 @@ extern bool cygwin_testing;
 extern char almost_null[];
 
 #define winsock2_active (wsadata.wVersion >= 512)
-#define winsock_active (wsadata.wVersion < 512)
 extern struct WSAData wsadata;
 
 #endif /* defined __cplusplus */