diff --git a/alethzero/MainWin.cpp b/alethzero/MainWin.cpp
index 8d8d4b854..6602cd4cf 100644
--- a/alethzero/MainWin.cpp
+++ b/alethzero/MainWin.cpp
@@ -98,7 +98,7 @@ Main::Main(QWidget *parent) :
 	};
 
 #if ETH_DEBUG
-	m_servers.append("localhost:30303");
+	m_servers.append("localhost:30300");
 #endif
 	m_servers.append(QString::fromStdString(Host::pocHost() + ":30303"));
 
diff --git a/libethereum/DownloadMan.h b/libethereum/DownloadMan.h
index 3ca04f0a3..e9cd37e3c 100644
--- a/libethereum/DownloadMan.h
+++ b/libethereum/DownloadMan.h
@@ -91,8 +91,10 @@ public:
 			for (auto i: m_subs)
 				i->resetFetch();
 		}
-
-		m_chain = _chain;
+		m_chain.clear();
+		m_chain.reserve(_chain.size());
+		for (auto i = _chain.rbegin(); i != _chain.rend(); ++i)
+			m_chain.push_back(*i);
 		m_blocksGot = RangeMask<unsigned>(0, m_chain.size());
 	}