diff --git a/src/n2n.c b/src/n2n.c
index e705c64..b12b0ef 100644
--- a/src/n2n.c
+++ b/src/n2n.c
@@ -34,7 +34,7 @@ SOCKET open_socket (int local_port, in_addr_t address, int type /* 0 = UDP, TCP
     struct sockaddr_in local_address;
     int sockopt;
 
-    if((sock_fd = socket(PF_INET, ((type == 0) ? SOCK_DGRAM : SOCK_STREAM) , 0)) < 0) {
+    if((int)(sock_fd = socket(PF_INET, ((type == 0) ? SOCK_DGRAM : SOCK_STREAM) , 0)) < 0) {
         traceEvent(TRACE_ERROR, "Unable to create socket [%s][%d]\n",
                    strerror(errno), sock_fd);
         return(-1);