diff --git a/common/netjack_packet.c b/common/netjack_packet.c
index 7e8f7be8..e6a88e9b 100644
--- a/common/netjack_packet.c
+++ b/common/netjack_packet.c
@@ -54,7 +54,6 @@
 
 #ifdef WIN32
 #include <winsock2.h>
-#define socklen_t int
 #include <malloc.h>
 #define socklen_t int
 #else