diff --git a/src/connection.c b/src/connection.c
index 8754d6e00..7e35630f4 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -43,16 +43,16 @@ struct mux_proto_list mux_proto_list = {
 
 int conn_create_mux(struct connection *conn)
 {
-	/* Verify if the connection just established. */
-	if (unlikely(!(conn->flags & (CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN | CO_FL_CONNECTED))))
-		conn->flags |= CO_FL_CONNECTED;
-
 	if (conn_is_back(conn)) {
 		struct server *srv;
 		struct conn_stream *cs = conn->ctx;
 
 		if (conn->flags & CO_FL_ERROR)
 			goto fail;
+		/* Verify if the connection just established. */
+		if (unlikely(!(conn->flags & (CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN | CO_FL_CONNECTED))))
+			conn->flags |= CO_FL_CONNECTED;
+
 		if (conn_install_mux_be(conn, conn->ctx, conn->owner) < 0)
 			goto fail;
 		srv = objt_server(conn->target);
diff --git a/src/session.c b/src/session.c
index d80392d1d..85c7976fc 100644
--- a/src/session.c
+++ b/src/session.c
@@ -433,6 +433,10 @@ int conn_complete_session(struct connection *conn)
 	if (conn->flags & CO_FL_ERROR)
 		goto fail;
 
+	/* Verify if the connection just established. */
+	if (unlikely(!(conn->flags & (CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN | CO_FL_CONNECTED))))
+		conn->flags |= CO_FL_CONNECTED;
+
 	/* if logs require transport layer information, note it on the connection */
 	if (sess->fe->to_log & LW_XPRT)
 		conn->flags |= CO_FL_XPRT_TRACKED;