diff --git a/src/i_tcp.c b/src/i_tcp.c
index 4dddd1522..35f071d95 100644
--- a/src/i_tcp.c
+++ b/src/i_tcp.c
@@ -557,7 +557,7 @@ static inline ptrdiff_t SOCK_SendToAddr(SOCKET_TYPE socket, mysockaddr_t* sockad
 static void SOCK_Send(void)
 {
 	ptrdiff_t c = ERRSOCKET;
-	ptrdiff_t i, j;
+	size_t i, j;
 
 	if (!nodeconnected[doomcom->remotenode])
 		return;