diff --git a/src/json_rpc_request.cpp b/src/json_rpc_request.cpp
index f2cc814..07df0a2 100644
--- a/src/json_rpc_request.cpp
+++ b/src/json_rpc_request.cpp
@@ -25,7 +25,7 @@ LOG_CATEGORY(JSONRPCRequest)
 namespace p2pool {
 namespace JSONRPCRequest {
 
-struct CurlContext
+struct CurlContext : public nocopy_nomove
 {
 	CurlContext(const std::string& address, int port, const std::string& req, const std::string& auth, const std::string& proxy, bool ssl, const std::string& ssl_fingerprint, CallbackBase* cb, CallbackBase* close_cb, uv_loop_t* loop);
 	~CurlContext();
diff --git a/src/zmq_reader.h b/src/zmq_reader.h
index 319667b..33e782a 100644
--- a/src/zmq_reader.h
+++ b/src/zmq_reader.h
@@ -22,7 +22,7 @@
 
 namespace p2pool {
 
-class ZMQReader {
+class ZMQReader : public nocopy_nomove {
 public:
 	ZMQReader(const std::string& address, uint32_t zmq_port, const std::string& proxy, MinerCallbackHandler* handler);
 	~ZMQReader();