diff --git a/src/mux_fcgi.c b/src/mux_fcgi.c
index 875049884..ab9ddf095 100644
--- a/src/mux_fcgi.c
+++ b/src/mux_fcgi.c
@@ -825,7 +825,7 @@ static inline struct fcgi_strm *fcgi_conn_st_by_id(struct fcgi_conn *fconn, int
  */
 static void fcgi_release(struct fcgi_conn *fconn)
 {
-	struct connection *conn = NULL;;
+	struct connection *conn = NULL;
 
 	TRACE_POINT(FCGI_EV_FCONN_END);
 
diff --git a/src/mux_h2.c b/src/mux_h2.c
index 44955ba8f..bfa65bd24 100644
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -926,7 +926,7 @@ static inline struct h2s *h2c_st_by_id(struct h2c *h2c, int id)
  */
 static void h2_release(struct h2c *h2c)
 {
-	struct connection *conn = NULL;;
+	struct connection *conn = NULL;
 
 	TRACE_ENTER(H2_EV_H2C_END);
 
diff --git a/src/ring.c b/src/ring.c
index 7c7d58edc..2ee6c10b9 100644
--- a/src/ring.c
+++ b/src/ring.c
@@ -186,7 +186,7 @@ ssize_t ring_write(struct ring *ring, size_t maxlen, const struct ist pfx[], siz
 		totlen += len;
 	}
 
-	*b_tail(buf) = 0; buf->data++;; // new read counter
+	*b_tail(buf) = 0; buf->data++; // new read counter
 	sent = lenlen + totlen + 1;
 
 	/* notify potential readers */