diff --git a/TunnelGateway.cpp b/TunnelGateway.cpp
index 6ac709d2..f8c5d031 100644
--- a/TunnelGateway.cpp
+++ b/TunnelGateway.cpp
@@ -203,7 +203,8 @@ namespace tunnel
 	{
 		m_Buffer.CompleteCurrentTunnelDataMessage ();
 		std::vector<std::shared_ptr<I2NPMessage> > newTunnelMsgs;
-		for (auto& tunnelMsg : m_Buffer.GetTunnelDataMsgs ())
+		const auto& tunnelDataMsgs = m_Buffer.GetTunnelDataMsgs ();
+		for (auto& tunnelMsg : tunnelDataMsgs)
 		{	
 			auto newMsg = CreateEmptyTunnelDataMsg ();
 			m_Tunnel->EncryptTunnelMsg (tunnelMsg, newMsg);