diff --git a/src/json_rpc_request.cpp b/src/json_rpc_request.cpp
index 5a415ee..6531f34 100644
--- a/src/json_rpc_request.cpp
+++ b/src/json_rpc_request.cpp
@@ -80,6 +80,8 @@ struct CurlContext
 
 	uint64_t m_startTime;
 	uint64_t m_connectedTime;
+
+	std::string m_proxy;
 };
 
 CurlContext::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)
@@ -93,6 +95,7 @@ CurlContext::CurlContext(const std::string& address, int port, const std::string
 	, m_headers(nullptr)
 	, m_startTime(0)
 	, m_connectedTime(0)
+	, m_proxy(proxy)
 {
 	m_pollHandles.reserve(2);
 
@@ -244,9 +247,8 @@ CurlContext::~CurlContext()
 	double tcp_ping = 0.0;
 
 	if (m_error.empty() && !m_response.empty()) {
-		if (m_connectedTime) {
-			tcp_ping = static_cast<double>(m_connectedTime - m_startTime) / 1000.0;
-		}
+		const uint64_t t = (m_proxy.empty() && m_connectedTime) ? m_connectedTime : microseconds_since_epoch();
+		tcp_ping = static_cast<double>(t - m_startTime) / 1000.0;
 		(*m_callback)(m_response.data(), m_response.size(), tcp_ping);
 	}
 	delete m_callback;