diff --git a/include/haproxy/xprt_quic.h b/include/haproxy/xprt_quic.h
index 4bda6a74d..b76d6f34d 100644
--- a/include/haproxy/xprt_quic.h
+++ b/include/haproxy/xprt_quic.h
@@ -133,9 +133,9 @@ static inline void quic_cid_dump(struct buffer *buf,
 }
 
 /* Simply compute a thread ID from a CID */
-static inline unsigned long quic_get_cid_tid(const struct quic_cid *cid)
+static inline unsigned long quic_get_cid_tid(const unsigned char *cid)
 {
-	return cid->data[0] % global.nbthread;
+	return *cid % global.nbthread;
 }
 
 /* Free the CIDs attached to <conn> QUIC connection. This must be called under
diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index cc3985e91..24c215350 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -4160,7 +4160,7 @@ int qc_conn_alloc_ssl_ctx(struct quic_conn *qc)
 	/* Set tasklet tid based on the SCID selected by us for this
 	 * connection. The upper layer will also be binded on the same thread.
 	 */
-	qc->tid = ctx->wait_event.tasklet->tid = quic_get_cid_tid(&qc->scid);
+	qc->tid = ctx->wait_event.tasklet->tid = quic_get_cid_tid(qc->scid.data);
 
 	if (qc_is_listener(qc)) {
 		if (qc_ssl_sess_init(qc, bc->initial_ctx, &ctx->ssl,