diff --git a/src/qmux_trace.c b/src/qmux_trace.c
index b5d85e2ea..812a4881b 100644
--- a/src/qmux_trace.c
+++ b/src/qmux_trace.c
@@ -8,6 +8,7 @@
 #include <haproxy/quic_conn-t.h>
 #include <haproxy/quic_frame-t.h>
 #include <haproxy/quic_utils.h>
+#include <haproxy/stconn.h>
 
 /* trace source and events */
 static void qmux_trace(enum trace_level level, uint64_t mask,
@@ -163,6 +164,11 @@ void qmux_dump_qcs_info(struct buffer *msg, const struct qcs *qcs)
 	chunk_appendf(msg, " qcs=%p .id=%llu .st=%s .flg=0x%04x", qcs, (ullong)qcs->id,
 	              qcs_st_to_str(qcs->st), qcs->flags);
 
+	if (qcs->sd) {
+		chunk_appendf(msg, " .sd=%p", qcs->sd);
+		chunk_appendf(msg, "(.flg=0x%08x)", se_fl_get(qcs->sd));
+	}
+
 	chunk_appendf(msg, " .rx=%llu/%llu rxb=%u(%u)",
 	              (ullong)qcs->rx.offset_max, (ullong)qcs->rx.msd,
 	              qcs->rx.data.bcnt, qcs->rx.data.bmax);