diff --git a/SQCSim2021/connector.cpp b/SQCSim2021/connector.cpp
index bb4ba8e..c9e6a27 100644
--- a/SQCSim2021/connector.cpp
+++ b/SQCSim2021/connector.cpp
@@ -56,8 +56,12 @@ int Connector::Connect(const char* srv_addr, std::string name) {
 		std::cout << "Échec de la connexion." << std::endl;
 		return 2;
 	}
-	
+
+#ifdef _WIN32
 	u_long flag = 1;
+#else
+	uint64_t** flag = nullptr;
+#endif
 	if (ioctl(m_sock_tcp, SOCK_NONBLOCK, &flag) < 0) {
 		std::cout << "Impossible de mettre le socket en mode non-bloquant." << std::endl;
 		return 3;