diff --git a/include/haproxy/mux_quic-t.h b/include/haproxy/mux_quic-t.h
index 906b383f2..34df2c7d9 100644
--- a/include/haproxy/mux_quic-t.h
+++ b/include/haproxy/mux_quic-t.h
@@ -18,6 +18,7 @@
 #include <haproxy/quic_pacing-t.h>
 #include <haproxy/quic_stream-t.h>
 #include <haproxy/quic_utils-t.h>
+#include <haproxy/session-t.h>
 #include <haproxy/stconn-t.h>
 #include <haproxy/task-t.h>
 #include <haproxy/time-t.h>
@@ -146,6 +147,7 @@ struct qc_stream_rxbuf {
 
 struct qcs {
 	struct qcc *qcc;
+	struct session *sess; /* only set for backend conns */
 	struct sedesc *sd;
 	uint32_t flags;      /* QC_SF_* */
 	enum qcs_state st;   /* QC_SS_* state */
diff --git a/src/mux_quic.c b/src/mux_quic.c
index 7222a9f4d..a65b564b9 100644
--- a/src/mux_quic.c
+++ b/src/mux_quic.c
@@ -134,6 +134,7 @@ static struct qcs *qcs_new(struct qcc *qcc, uint64_t id, enum qcs_type type)
 
 	qcs->stream = NULL;
 	qcs->qcc = qcc;
+	qcs->sess = NULL;
 	qcs->sd = NULL;
 	qcs->flags = QC_SF_NONE;
 	qcs->st = QC_SS_IDLE;
@@ -3661,6 +3662,7 @@ static int qmux_init(struct connection *conn, struct proxy *prx,
 			goto err;
 		}
 
+		qcs->sess = sess;
 		qcs->sd = sc->sedesc;
 		qcc->nb_sc++;
 	}
@@ -3720,6 +3722,7 @@ static int qmux_strm_attach(struct connection *conn, struct sedesc *sd, struct s
 		return -1;
 	}
 
+	qcs->sess = sess;
 	qcs->sd = sd->sc->sedesc;
 	qcc->nb_sc++;