diff --git a/libp2p/Host.h b/libp2p/Host.h
index 3b2ebe6aa..219316c58 100644
--- a/libp2p/Host.h
+++ b/libp2p/Host.h
@@ -50,7 +50,7 @@ namespace dev
 
 namespace p2p
 {
-	
+
 class Host;
 
 class HostNodeTableHandler: public NodeTableEventHandler
diff --git a/libp2p/Session.cpp b/libp2p/Session.cpp
index 5ceb61f8b..5caf5bd44 100644
--- a/libp2p/Session.cpp
+++ b/libp2p/Session.cpp
@@ -403,7 +403,7 @@ void Session::doRead()
 	// ignore packets received while waiting to disconnect.
 	if (m_dropped)
 		return;
-	
+
 	auto self(shared_from_this());
 	ba::async_read(m_socket, boost::asio::buffer(m_data, h256::size), [this,self](boost::system::error_code ec, std::size_t length)
 	{
@@ -427,7 +427,7 @@ void Session::doRead()
 
 			/// check frame size
 			uint32_t frameSize = (m_data[0] * 256 + m_data[1]) * 256 + m_data[2];
-			if (frameSize > 16777216)
+			if (frameSize >= (uint32_t)1 << 24)
 			{
 				clog(NetWarn) << "frame size too large";
 				drop(BadProtocol);