diff --git a/include/my_net.h b/include/my_net.h
index 71914964e46..43360b6153c 100644
--- a/include/my_net.h
+++ b/include/my_net.h
@@ -61,6 +61,14 @@ C_MODE_START
 
 #if defined(MSDOS) || defined(__WIN__)
 #define O_NONBLOCK 1    /* For emulation of fcntl() */
+
+/*
+  SHUT_RDWR is called SD_BOTH in windows and
+  is defined to 2 in winsock2.h
+  #define SD_BOTH 0x02
+*/
+#define SHUT_RDWR 0x02
+
 #endif
 
 /*