diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ad11bc..c0cf214 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,5 @@
+#note: experimental
+
 cmake_minimum_required(VERSION 3.7)
 project(speederv2)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
diff --git a/connection.h b/connection.h
index 615698b..0b7f8ac 100644
--- a/connection.h
+++ b/connection.h
@@ -188,6 +188,9 @@ struct stat_t {
     inner_stat_t normal_to_fec;
     inner_stat_t fec_to_normal;
     stat_t() {
+        clear();
+    }
+    void clear(){
         memset(this, 0, sizeof(stat_t));
     }
     void report_as_client() {