diff --git a/include/haproxy/stream.h b/include/haproxy/stream.h
index 94e89b40c..f72a923ce 100644
--- a/include/haproxy/stream.h
+++ b/include/haproxy/stream.h
@@ -61,7 +61,7 @@ extern struct data_cb sess_conn_cb;
 
 struct stream *stream_new(struct session *sess, struct stconn *sc, struct buffer *input);
 void stream_free(struct stream *s);
-int stream_upgrade_from_cs(struct stconn *sc, struct buffer *input);
+int stream_upgrade_from_sc(struct stconn *sc, struct buffer *input);
 int stream_set_http_mode(struct stream *s, const struct mux_proto_list *mux_proto);
 
 /* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
diff --git a/src/mux_h1.c b/src/mux_h1.c
index 72bdf588b..a7e08f260 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -753,7 +753,7 @@ static struct stconn *h1s_upgrade_sc(struct h1s *h1s, struct buffer *input)
 {
 	TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
 
-	if (stream_upgrade_from_cs(h1s_sc(h1s), input) < 0) {
+	if (stream_upgrade_from_sc(h1s_sc(h1s), input) < 0) {
 		TRACE_ERROR("stream upgrade failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
 		goto err;
 	}
diff --git a/src/stream.c b/src/stream.c
index 127a5ab72..25dcc4e2d 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -275,7 +275,7 @@ static void strm_trace(enum trace_level level, uint64_t mask, const struct trace
  * BUF_NULL. On error, it is unchanged and it is the caller responsibility to
  * release it (this never happens for now).
  */
-int stream_upgrade_from_cs(struct stconn *sc, struct buffer *input)
+int stream_upgrade_from_sc(struct stconn *sc, struct buffer *input)
 {
 	struct stream *s = __sc_strm(sc);
 	const struct mux_ops *mux = sc_mux_ops(sc);