diff --git a/SQCSim2021/connector.cpp b/SQCSim2021/connector.cpp
index 57912cb..83759cd 100644
--- a/SQCSim2021/connector.cpp
+++ b/SQCSim2021/connector.cpp
@@ -62,6 +62,13 @@ int Connector::Connect(const char* srv_addr, std::string name) {
 		return 3;
 	}
 	*/
+
+	u_long flag = 1;
+	if (ioctlsocket(m_sock_tcp, FIONBIO, &flag) < 0) {
+		std::cout << "Impossible de mettre le socket en mode non-bloquant." << std::endl;
+		return 3;
+	}
+
 	netprot::Buffer bf;
 	netprot::LoginInfo log;
 	strcpy(log.name, name.c_str());