diff --git a/include/haproxy/connection.h b/include/haproxy/connection.h
index 46a521e01..739d6a636 100644
--- a/include/haproxy/connection.h
+++ b/include/haproxy/connection.h
@@ -357,6 +357,7 @@ static inline void conn_init(struct connection *conn, void *target)
 	conn->dst = NULL;
 	conn->proxy_authority = IST_NULL;
 	conn->proxy_unique_id = IST_NULL;
+	conn->qc = NULL;
 	conn->hash_node = NULL;
 }