diff --git a/include/haproxy/connection.h b/include/haproxy/connection.h
index c42ca17e6..7cc852fd1 100644
--- a/include/haproxy/connection.h
+++ b/include/haproxy/connection.h
@@ -249,6 +249,8 @@ static inline void conn_xprt_shutw_hard(struct connection *c)
 /* shut read */
 static inline void cs_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
 {
+	if (cs->flags & CS_FL_SHR)
+		return;
 
 	/* clean data-layer shutdown */
 	if (cs->conn->mux && cs->conn->mux->shutr)
@@ -259,6 +261,8 @@ static inline void cs_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
 /* shut write */
 static inline void cs_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
 {
+	if (cs->flags & CS_FL_SHW)
+		return;
 
 	/* clean data-layer shutdown */
 	if (cs->conn->mux && cs->conn->mux->shutw)