diff --git a/src/qt/bitcoinunits.cpp b/src/qt/bitcoinunits.cpp
index e9a865de0..f12976a90 100644
--- a/src/qt/bitcoinunits.cpp
+++ b/src/qt/bitcoinunits.cpp
@@ -15,9 +15,10 @@ BitcoinUnits::BitcoinUnits(QObject *parent):
 QList<BitcoinUnits::Unit> BitcoinUnits::availableUnits()
 {
     QList<BitcoinUnits::Unit> unitlist;
+    unitlist.append(MDOGE);
+    unitlist.append(kDOGE);
     unitlist.append(DOGE);
-    unitlist.append(mDOGE);
-    unitlist.append(uDOGE);
+    unitlist.append(Koinu);
     return unitlist;
 }
 
@@ -25,9 +26,10 @@ bool BitcoinUnits::valid(int unit)
 {
     switch(unit)
     {
+    case MDOGE:
+    case kDOGE:
     case DOGE:
-    case mDOGE:
-    case uDOGE:
+    case Koinu:
         return true;
     default:
         return false;
@@ -38,9 +40,10 @@ QString BitcoinUnits::name(int unit)
 {
     switch(unit)
     {
+    case MDOGE: return QString("MDOGE");
+    case kDOGE: return QString("kDOGE");
     case DOGE: return QString("DOGE");
-    case mDOGE: return QString("mDOGE");
-    case uDOGE: return QString::fromUtf8("μDOGE");
+    case Koinu: return QString("Koinu");
     default: return QString("???");
     }
 }
@@ -49,9 +52,10 @@ QString BitcoinUnits::description(int unit)
 {
     switch(unit)
     {
+    case MDOGE: return QString("Mega-Dogecoin (1,000,000 DOGE)");
+    case kDOGE: return QString("Kilo-Dogecoin (1000 DOGE)");
     case DOGE: return QString("Dogecoin");
-    case mDOGE: return QString("Milli-Dogecoin (1 / 1,000)");
-    case uDOGE: return QString("Micro-Dogecoin (1 / 1,000,000)");
+    case Koinu: return QString("Koinu (1 / 100,000,000");
     default: return QString("???");
     }
 }
@@ -60,10 +64,11 @@ qint64 BitcoinUnits::factor(int unit)
 {
     switch(unit)
     {
-    case DOGE:  return 100000000;
-    case mDOGE: return 100000;
-    case uDOGE: return 100;
-    default:   return 100000000;
+    case MDOGE: return Q_INT64_C(100000000000000);
+    case kDOGE: return Q_INT64_C(100000000000);
+    case DOGE:  return Q_INT64_C(100000000);
+    case Koinu: return Q_INT64_C(1);
+    default:    return Q_INT64_C(100000000);
     }
 }
 
@@ -71,9 +76,10 @@ qint64 BitcoinUnits::maxAmount(int unit)
 {
     switch(unit)
     {
+    case MDOGE: return Q_INT64_C(900000);
+    case kDOGE: return Q_INT64_C(900000000);
     case DOGE:  return Q_INT64_C(900000000000);    //less than the coin supply until the year 2170
-    case mDOGE: return Q_INT64_C(900000000000000);
-    case uDOGE: return Q_INT64_C(900000000000000000);
+    case Koinu: return Q_INT64_C(90000000000000000000);
     default:   return 0;
     }
 }
@@ -82,9 +88,10 @@ int BitcoinUnits::amountDigits(int unit)
 {
     switch(unit)
     {
-    case DOGE: return 12;  // 900,000,000,000 (# digits, without commas)
-    case mDOGE: return 15; // 900,000,000,000,000
-    case uDOGE: return 18; // 900,000,000,000,000,000
+    case MDOGE: return 6;  // 900,000 (# digits, without commas)
+    case kDOGE: return 9;  // 900,000,000
+    case DOGE:  return 12; // 900,000,000,000
+    case Koinu: return 20; // 90,000,000,000,000,000,000
     default: return 0;
     }
 }
@@ -93,9 +100,10 @@ int BitcoinUnits::decimals(int unit)
 {
     switch(unit)
     {
+    case MDOGE: return 14;
+    case kDOGE: return 11;
     case DOGE: return 8;
-    case mDOGE: return 5;
-    case uDOGE: return 2;
+    case Koinu: return 0;
     default: return 0;
     }
 }
diff --git a/src/qt/bitcoinunits.h b/src/qt/bitcoinunits.h
index 393b8209e..9f51b59b1 100644
--- a/src/qt/bitcoinunits.h
+++ b/src/qt/bitcoinunits.h
@@ -21,11 +21,14 @@ public:
     /** Bitcoin units.
       @note Source: https://en.bitcoin.it/wiki/Units . Please add only sensible ones
      */
-    enum Unit
+    enum Unit   //Note: preserve positions in order to preserve existing settings
     {
         DOGE,
-        mDOGE,
-        uDOGE
+        //formerly mDOGE
+        //formerly uDOGE
+        MDOGE = 3,
+        kDOGE = 4,
+        Koinu = 5
     };
 
     //! @name Static API
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index a1972ad51..f3b63dbdf 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -53,6 +53,8 @@ void OptionsModel::Init()
     if (!settings.contains("nDisplayUnit"))
         settings.setValue("nDisplayUnit", BitcoinUnits::DOGE);
     nDisplayUnit = settings.value("nDisplayUnit").toInt();
+    if(!BitcoinUnits::valid(nDisplayUnit))
+        nDisplayUnit = BitcoinUnits::DOGE;
 
     if (!settings.contains("bDisplayAddresses"))
         settings.setValue("bDisplayAddresses", false);