diff --git a/vlib/net/socket.v b/vlib/net/socket.v
index 5f5009a9d3..2a1c77bad6 100644
--- a/vlib/net/socket.v
+++ b/vlib/net/socket.v
@@ -90,7 +90,7 @@ pub fn new_socket(family int, _type int, proto int) ?Socket {
 	// This is needed so that there are no problems with reusing the
 	// same port after the application exits.
 	C.setsockopt(sockfd, C.SOL_SOCKET, C.SO_REUSEADDR, &one, sizeof(int))
-	if sockfd == 0 {
+	if sockfd == -1 {
 		return error('net.socket: failed')
 	}
 	s := Socket{