diff --git a/include/vm_websocket.hpp b/include/vm_websocket.hpp
index 34ef82e..2a0353b 100644
--- a/include/vm_websocket.hpp
+++ b/include/vm_websocket.hpp
@@ -32,6 +32,11 @@
 
     ~Handler() = default;
 
+    Handler(const Handler&) = delete;
+    Handler(Handler&&) = delete;
+    Handler& operator=(const Handler&) = delete;
+    Handler& operator=(Handler&&) = delete;
+
     void doClose()
     {
         // boost::process::child::terminate uses SIGKILL, need to send SIGTERM