diff --git a/Qv2ray.pro b/Qv2ray.pro
index 9c8a6a68..c0d45319 100644
--- a/Qv2ray.pro
+++ b/Qv2ray.pro
@@ -84,9 +84,10 @@ Qv2rayAddSource(core, config, ConfigUpgrade, cpp)
 Qv2rayAddSource(core, connection, ConnectionIO, cpp, hpp)
 Qv2rayAddSource(core, connection, Generation, cpp, hpp)
 Qv2rayAddSource(core, connection, Serialization, cpp, hpp)
-Qv2rayAddSource(core, _, CoreUtils, cpp, hpp)
 Qv2rayAddSource(core, kernel, KernelInteractions, cpp, hpp)
 Qv2rayAddSource(core, kernel, APIBackend, cpp, hpp)
+Qv2rayAddSource(core, handler, ConnectionHandler, cpp, hpp)
+Qv2rayAddSource(core, _, CoreUtils, cpp, hpp)
 Qv2rayAddSource(ui, editors, w_InboundEditor, cpp, hpp, ui)
 Qv2rayAddSource(ui, editors, w_JsonEditor, cpp, hpp, ui)
 Qv2rayAddSource(ui, editors, w_OutboundEditor, cpp, hpp, ui)
diff --git a/makespec/BUILDVERSION b/makespec/BUILDVERSION
index 38ab567f..9bb70db0 100644
--- a/makespec/BUILDVERSION
+++ b/makespec/BUILDVERSION
@@ -1 +1 @@
-3861
+3862
diff --git a/src/core/handler/ConnectionHandler.cpp b/src/core/handler/ConnectionHandler.cpp
new file mode 100644
index 00000000..e69de29b
diff --git a/src/core/handler/ConnectionHandler.hpp b/src/core/handler/ConnectionHandler.hpp
new file mode 100644
index 00000000..6f70f09b
--- /dev/null
+++ b/src/core/handler/ConnectionHandler.hpp
@@ -0,0 +1 @@
+#pragma once