diff --git a/src/curecoinrpc.h b/src/curecoinrpc.h
index 06208fe..c5e835c 100644
--- a/src/curecoinrpc.h
+++ b/src/curecoinrpc.h
@@ -4,11 +4,13 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef _curecoinRPC_H_
-#define _curecoinRPC_H_ 1
+#define _curecoinRPC_H_
 
 #if BOOST_VERSION >= 106600
+#ifndef BOOST_ASIO_ENABLE_OLD_SERVICES
 #define BOOST_ASIO_ENABLE_OLD_SERVICES
 #endif
+#endif
 
 #include <string>
 #include <list>
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index ecf08fc..04ab2f7 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -9,8 +9,6 @@
 #include "walletdb.h" // for BackupWallet
 #include "base58.h"
 
-#include <functional>
-
 #include <QSet>
 #include <QTimer>
 
@@ -337,21 +335,21 @@ static void NotifyTransactionChanged(WalletModel *walletmodel, CWallet *wallet,
 void WalletModel::subscribeToCoreSignals()
 {
     // Connect signals to wallet
-    wallet->NotifyStatusChanged.connect(boost::bind(&NotifyKeyStoreStatusChanged, this, std::placeholders::_1));
-    wallet->NotifyAddressBookChanged.connect(boost::bind(NotifyAddressBookChanged, this, std::placeholders::_1, std::placeholders::_2,
-                                                         std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
-    wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, std::placeholders::_1, std::placeholders::_2,
-                                                         std::placeholders::_3));
+    wallet->NotifyStatusChanged.connect(boost::bind(&NotifyKeyStoreStatusChanged, this, boost::placeholders::_1));
+    wallet->NotifyAddressBookChanged.connect(boost::bind(NotifyAddressBookChanged, this, boost::placeholders::_1, boost::placeholders::_2,
+                                                         boost::placeholders::_3, boost::placeholders::_4, boost::placeholders::_5));
+    wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, boost::placeholders::_1, boost::placeholders::_2,
+                                                         boost::placeholders::_3));
 }
 
 void WalletModel::unsubscribeFromCoreSignals()
 {
     // Disconnect signals from wallet
-    wallet->NotifyStatusChanged.disconnect(boost::bind(&NotifyKeyStoreStatusChanged, this, std::placeholders::_1));
-    wallet->NotifyAddressBookChanged.disconnect(boost::bind(NotifyAddressBookChanged, this, std::placeholders::_1, boost::placeholders::_2,
-                                                            std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
-    wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, std::placeholders::_1, std::placeholders::_2,
-                                                            std::placeholders::_3));
+    wallet->NotifyStatusChanged.disconnect(boost::bind(&NotifyKeyStoreStatusChanged, this, boost::placeholders::_1));
+    wallet->NotifyAddressBookChanged.disconnect(boost::bind(NotifyAddressBookChanged, this, boost::placeholders::_1, boost::placeholders::_2,
+                                                            boost::placeholders::_3, boost::placeholders::_4, boost::placeholders::_5));
+    wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, boost::placeholders::_1, boost::placeholders::_2,
+                                                            boost::placeholders::_3));
 }
 
 // WalletModel::UnlockContext implementation