diff --git a/include/haproxy/mux_quic.h b/include/haproxy/mux_quic.h
index c3eee86e5..5abb1df9f 100644
--- a/include/haproxy/mux_quic.h
+++ b/include/haproxy/mux_quic.h
@@ -54,6 +54,22 @@ static inline int qcs_get_next_id(struct qcc *qcc, enum qcs_type type)
 
 struct eb64_node *qcc_get_qcs(struct qcc *qcc, uint64_t id);
 
+/* Install the <app_ops> applicative layer of a QUIC connection on mux <qcc>.
+ * Returns 0 on success else non-zero.
+ */
+static inline int qcc_install_app_ops(struct qcc *qcc,
+                                      const struct qcc_app_ops *app_ops)
+{
+	qcc->app_ops = app_ops;
+	if (qcc->app_ops->init && !qcc->app_ops->init(qcc))
+		return 1;
+
+	if (qcc->app_ops->finalize)
+		qcc->app_ops->finalize(qcc->ctx);
+
+	return 0;
+}
+
 #endif /* USE_QUIC */
 
 #endif /* _HAPROXY_MUX_QUIC_H */
diff --git a/include/haproxy/xprt_quic-t.h b/include/haproxy/xprt_quic-t.h
index 562d22cab..23f641a2f 100644
--- a/include/haproxy/xprt_quic-t.h
+++ b/include/haproxy/xprt_quic-t.h
@@ -735,6 +735,8 @@ struct quic_conn {
 	struct task *timer_task;
 	unsigned int timer;
 	unsigned int flags;
+
+	const struct qcc_app_ops *app_ops;
 };
 
 #endif /* USE_QUIC */
diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index 3683350a5..33eb02181 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -1041,23 +1041,16 @@ void quic_set_tls_alert(struct quic_conn *qc, int alert)
  */
 int quic_set_app_ops(struct quic_conn *qc, const unsigned char *alpn, size_t alpn_len)
 {
-	const struct qcc_app_ops *app_ops;
-
-	if (alpn_len >= 2 && memcmp(alpn, "h3", 2) == 0) {
-		app_ops = qc->qcc->app_ops = &h3_ops;
-	}
-	else if (alpn_len >= 10 && memcmp(alpn, "hq-interop", 10) == 0) {
-		app_ops = qc->qcc->app_ops = &hq_interop_ops;
-	}
+	if (alpn_len >= 2 && memcmp(alpn, "h3", 2) == 0)
+		qc->app_ops = &h3_ops;
+	else if (alpn_len >= 10 && memcmp(alpn, "hq-interop", 10) == 0)
+		qc->app_ops = &hq_interop_ops;
 	else
 		return 0;
 
-	if (app_ops->init && !app_ops->init(qc->qcc))
+	if (qcc_install_app_ops(qc->qcc, qc->app_ops))
 		return 0;
 
-	if (app_ops->finalize)
-		app_ops->finalize(qc->qcc->ctx);
-
 	/* mux-quic can now be considered ready. */
 	qc->mux_state = QC_MUX_READY;