diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index 3b6608c95..a8cc256bc 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -74,7 +74,7 @@ bool AppInit(int argc, char* argv[])
     // Process help and version before taking care about datadir
     if (mapArgs.count("-?") || mapArgs.count("-h") ||  mapArgs.count("-help") || mapArgs.count("-version"))
     {
-        std::string strUsage = _("Bitcoin Core Daemon") + " " + _("version") + " " + FormatFullVersion() + "\n";
+        std::string strUsage = _("Blackcoin Lore Daemon") + " " + _("version") + " " + FormatFullVersion() + "\n";
 
         if (mapArgs.count("-version"))
         {
@@ -83,7 +83,7 @@ bool AppInit(int argc, char* argv[])
         else
         {
             strUsage += "\n" + _("Usage:") + "\n" +
-                  "  bitcoind [options]                     " + _("Start Bitcoin Core Daemon") + "\n";
+                  "  blackcoind [options]                     " + _("Start Blackcoin Lore Daemon") + "\n";
 
             strUsage += "\n" + HelpMessage(HMM_BITCOIND);
         }
@@ -117,19 +117,19 @@ bool AppInit(int argc, char* argv[])
         // Command-line RPC
         bool fCommandLine = false;
         for (int i = 1; i < argc; i++)
-            if (!IsSwitchChar(argv[i][0]) && !boost::algorithm::istarts_with(argv[i], "bitcoin:"))
+            if (!IsSwitchChar(argv[i][0]) && !boost::algorithm::istarts_with(argv[i], "blackcoin:"))
                 fCommandLine = true;
 
         if (fCommandLine)
         {
-            fprintf(stderr, "Error: There is no RPC client functionality in bitcoind anymore. Use the bitcoin-cli utility instead.\n");
+            fprintf(stderr, "Error: There is no RPC client functionality in blackcoind anymore. Use the blackcoin-cli utility instead.\n");
             exit(1);
         }
 #ifndef WIN32
         fDaemon = GetBoolArg("-daemon", false);
         if (fDaemon)
         {
-            fprintf(stdout, "Bitcoin server starting\n");
+            fprintf(stdout, "Blackcoin server starting\n");
 
             // Daemonize
             pid_t pid = fork();
diff --git a/src/qt/openuridialog.cpp b/src/qt/openuridialog.cpp
index 1c843aecb..80d0b8228 100644
--- a/src/qt/openuridialog.cpp
+++ b/src/qt/openuridialog.cpp
@@ -16,7 +16,7 @@ OpenURIDialog::OpenURIDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 #if QT_VERSION >= 0x040700
-    ui->uriEdit->setPlaceholderText("bitcoin:");
+    ui->uriEdit->setPlaceholderText("blackcoin:");
 #endif
 }
 
@@ -48,5 +48,5 @@ void OpenURIDialog::on_selectFileButton_clicked()
     if(filename.isEmpty())
         return;
     QUrl fileUri = QUrl::fromLocalFile(filename);
-    ui->uriEdit->setText("bitcoin:?r=" + QUrl::toPercentEncoding(fileUri.toString()));
+    ui->uriEdit->setText("blackcoin:?r=" + QUrl::toPercentEncoding(fileUri.toString()));
 }
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index 6dd22528e..a8b346808 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -47,7 +47,7 @@
 #endif
 
 const int BITCOIN_IPC_CONNECT_TIMEOUT = 1000; // milliseconds
-const QString BITCOIN_IPC_PREFIX("bitcoin:");
+const QString BITCOIN_IPC_PREFIX("blackcoin:");
 // BIP70 payment protocol messages
 const char* BIP70_MESSAGE_PAYMENTACK = "PaymentACK";
 const char* BIP70_MESSAGE_PAYMENTREQUEST = "PaymentRequest";
@@ -326,7 +326,7 @@ PaymentServer::PaymentServer(QObject* parent, bool startLocalServer) :
         if (!uriServer->listen(name)) {
             // constructor is called early in init, so don't use "Q_EMIT message()" here
             QMessageBox::critical(0, tr("Payment request error"),
-                tr("Cannot start bitcoin: click-to-pay handler"));
+                tr("Cannot start blackcoin: click-to-pay handler"));
         }
         else {
             connect(uriServer, SIGNAL(newConnection()), this, SLOT(handleURIConnection()));