diff --git a/src/net_socket.c b/src/net_socket.c
index ac90d8af..5af458e7 100644
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -107,6 +107,7 @@ static bool bind_to_interface(int sd) {
 		return false;
 	}
 #else /* if !defined(SOL_SOCKET) || !defined(SO_BINDTODEVICE) */
+	UNUSED(sd);
 	logger(DEBUG_ALWAYS, LOG_WARNING, "%s not supported on this platform", "BindToInterface");
 #endif