diff --git a/include/proto/connection.h b/include/proto/connection.h
index 2a45677b7..85c5b633f 100644
--- a/include/proto/connection.h
+++ b/include/proto/connection.h
@@ -796,11 +796,12 @@ static inline struct wait_list *wl_set_waitcb(struct wait_list *wl, struct task
 /* Installs the connection's mux layer for upper context <ctx>.
  * Returns < 0 on error.
  */
-static inline int conn_install_mux(struct connection *conn, const struct mux_ops *mux, void *ctx)
+static inline int conn_install_mux(struct connection *conn, const struct mux_ops *mux,
+                                   void *ctx, struct proxy *prx)
 {
 	conn->mux = mux;
 	conn->mux_ctx = ctx;
-	return mux->init ? mux->init(conn) : 0;
+	return mux->init ? mux->init(conn, prx) : 0;
 }
 
 /* returns a human-readable error code for conn->err_code, or NULL if the code
@@ -1045,7 +1046,7 @@ static inline int conn_install_mux_fe(struct connection *conn, void *ctx)
 		if (!mux_ops)
 			return -1;
 	}
-	return conn_install_mux(conn, mux_ops, ctx);
+	return conn_install_mux(conn, mux_ops, ctx, bind_conf->frontend);
 }
 
 /* installs the best mux for outgoing connection <conn> using the upper context
@@ -1074,7 +1075,7 @@ static inline int conn_install_mux_be(struct connection *conn, void *ctx)
 		if (!mux_ops)
 			return -1;
 	}
-	return conn_install_mux(conn, mux_ops, ctx);
+	return conn_install_mux(conn, mux_ops, ctx, prx);
 }
 
 #endif /* _PROTO_CONNECTION_H */
diff --git a/include/types/connection.h b/include/types/connection.h
index 59bb27d1b..27ae76e21 100644
--- a/include/types/connection.h
+++ b/include/types/connection.h
@@ -41,6 +41,7 @@
 struct connection;
 struct conn_stream;
 struct buffer;
+struct proxy;
 struct server;
 struct pipe;
 
@@ -310,7 +311,7 @@ struct xprt_ops {
  * layer is not ready yet.
  */
 struct mux_ops {
-	int  (*init)(struct connection *conn);        /* early initialization */
+	int  (*init)(struct connection *conn, struct proxy *prx);  /* early initialization */
 	int  (*wake)(struct connection *conn);        /* mux-layer callback to report activity, mandatory */
 	void (*update_poll)(struct conn_stream *cs);  /* commit cs flags to mux/conn */
 	size_t (*rcv_buf)(struct conn_stream *cs, struct buffer *buf, size_t count, int flags); /* Called from the upper layer to get data */
diff --git a/src/checks.c b/src/checks.c
index 96374301c..6d19eef3f 100644
--- a/src/checks.c
+++ b/src/checks.c
@@ -1611,7 +1611,7 @@ static int connect_conn_chk(struct task *t)
 	clear_addr(&conn->addr.from);
 
 	conn_prepare(conn, proto, check->xprt);
-	conn_install_mux(conn, &mux_pt_ops, cs);
+	conn_install_mux(conn, &mux_pt_ops, cs, s->proxy);
 	cs_attach(cs, check, &check_conn_cb);
 
 	/* only plain tcp-check supports quick ACK */
@@ -2806,7 +2806,7 @@ static int tcpcheck_main(struct check *check)
 			}
 
 			conn_prepare(conn, proto, xprt);
-			conn_install_mux(conn, &mux_pt_ops, cs);
+			conn_install_mux(conn, &mux_pt_ops, cs, s->proxy);
 			cs_attach(cs, check, &check_conn_cb);
 
 			ret = SF_ERR_INTERNAL;
diff --git a/src/mux_h2.c b/src/mux_h2.c
index 780bc57f6..3faf5aeef 100644
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -438,7 +438,7 @@ static int h2c_frt_init(struct connection *conn)
  * connections from the fact that the context is still NULL. Returns < 0 on
  * error.
  */
-static int h2_init(struct connection *conn)
+static int h2_init(struct connection *conn, struct proxy *prx)
 {
 	if (conn->mux_ctx) {
 		/* we don't support outgoing connections for now */
diff --git a/src/mux_pt.c b/src/mux_pt.c
index 466ac21b9..5b864199e 100644
--- a/src/mux_pt.c
+++ b/src/mux_pt.c
@@ -19,7 +19,7 @@
  * incoming ones, in which case one will be allocated and a new stream will be
  * instanciated). Returns < 0 on error.
  */
-static int mux_pt_init(struct connection *conn)
+static int mux_pt_init(struct connection *conn, struct proxy *prx)
 {
 	struct conn_stream *cs = conn->mux_ctx;
 
diff --git a/src/peers.c b/src/peers.c
index 50aee870d..e61caaf93 100644
--- a/src/peers.c
+++ b/src/peers.c
@@ -1971,7 +1971,7 @@ static struct appctx *peer_session_create(struct peers *peers, struct peer *peer
 	memcpy(&conn->addr.to, &peer->addr, sizeof(conn->addr.to));
 
 	conn_prepare(conn, peer->proto, peer->xprt);
-	conn_install_mux(conn, &mux_pt_ops, cs);
+	conn_install_mux(conn, &mux_pt_ops, cs, s->be);
 	si_attach_cs(&s->si[1], cs);
 
 	s->do_log = NULL;