diff --git a/pages/SharedRingDB.qml b/pages/SharedRingDB.qml
index 1be138c6..2fc11f3f 100644
--- a/pages/SharedRingDB.qml
+++ b/pages/SharedRingDB.qml
@@ -50,6 +50,15 @@ Rectangle {
         return true
     }
 
+    function validUnsigned(s) {
+        if (s.length == 0)
+            return false
+        for (var i = 0; i < s.length; ++i)
+            if ("0123456789".indexOf(s[i]) == -1)
+                return false
+        return true
+    }
+
     function validRing(str, relative) {
         var outs = str.split(" ");
         if (outs.length == 0)
@@ -199,15 +208,24 @@ Rectangle {
 
             RowLayout {
                 LineEdit {
-                    id: blackballOutputLine
+                    id: blackballOutputAmountLine
                     fontSize: mainLayout.lineEditFontSize
                     labelFontSize: 14 * scaleRatio
                     labelText: qsTr("Or manually blackball/unblackball a single output:") + translationManager.emptyString
-                    placeholderText: qsTr("Paste output public key") + "..." + translationManager.emptyString
+                    placeholderText: qsTr("Paste output amount") + "..." + translationManager.emptyString
                     readOnly: false
-                    copyButton: true
-                    width: mainLayout.editWidth
-                    Layout.fillWidth: true
+                    width: mainLayout.editWidth / 2
+                    validator: IntValidator { bottom: 0 }
+                }
+                LineEdit {
+                    id: blackballOutputOffsetLine
+                    fontSize: mainLayout.lineEditFontSize
+                    labelFontSize: 14 * scaleRatio
+                    labelText: " "
+                    placeholderText: qsTr("Paste output offset") + "..." + translationManager.emptyString
+                    readOnly: false
+                    width: mainLayout.editWidth / 2
+                    validator: IntValidator { bottom: 0 }
                 }
             }
 
@@ -219,8 +237,8 @@ Rectangle {
                     id: blackballButton
                     text: qsTr("Blackball") + translationManager.emptyString
                     small: true
-                    enabled: !!appWindow.currentWallet && validHex32(blackballOutputLine.text)
-                    onClicked: appWindow.currentWallet.blackballOutput(blackballOutputLine.text)
+                    enabled: !!appWindow.currentWallet && validUnsigned(blackballOutputAmountLine.text) && validUnsigned(blackballOutputOffsetLine.text)
+                    onClicked: appWindow.currentWallet.blackballOutput(blackballOutputAmountLine.text, blackballOutputOffsetLine.text)
                 }
 
                 StandardButton {
@@ -228,8 +246,8 @@ Rectangle {
                     anchors.right: parent.right
                     text: qsTr("Unblackball") + translationManager.emptyString
                     small: true
-                    enabled: !!appWindow.currentWallet && validHex32(blackballOutputLine.text)
-                    onClicked: appWindow.currentWallet.unblackballOutput(blackballOutputLine.text)
+                    enabled: !!appWindow.currentWallet && validUnsigned(blackballOutputAmountLine.text) && validUnsigned(blackballOutputOffsetLine.text)
+                    onClicked: appWindow.currentWallet.unblackballOutput(blackballOutputAmountLine.text, blackballOutputOffsetLine.text)
                 }
             }
         }
diff --git a/src/libwalletqt/Wallet.cpp b/src/libwalletqt/Wallet.cpp
index 2c6e92c9..4aa442fa 100644
--- a/src/libwalletqt/Wallet.cpp
+++ b/src/libwalletqt/Wallet.cpp
@@ -738,11 +738,9 @@ QString Wallet::getDaemonLogPath() const
     return QString::fromStdString(m_walletImpl->getDefaultDataDir()) + "/bitmonero.log";
 }
 
-bool Wallet::blackballOutput(const QString &pubkey)
+bool Wallet::blackballOutput(const QString &amount, const QString &offset)
 {
-    QList<QString> list;
-    list.push_back(pubkey);
-    return blackballOutputs(list, true);
+    return m_walletImpl->blackballOutput(amount.toStdString(), offset.toStdString());
 }
 
 bool Wallet::blackballOutputs(const QList<QString> &pubkeys, bool add)
@@ -775,9 +773,9 @@ bool Wallet::blackballOutputs(const QString &filename, bool add)
     }
 }
 
-bool Wallet::unblackballOutput(const QString &pubkey)
+bool Wallet::unblackballOutput(const QString &amount, const QString &offset)
 {
-    return m_walletImpl->unblackballOutput(pubkey.toStdString());
+    return m_walletImpl->unblackballOutput(amount.toStdString(), offset.toStdString());
 }
 
 QString Wallet::getRing(const QString &key_image)
diff --git a/src/libwalletqt/Wallet.h b/src/libwalletqt/Wallet.h
index d0f053ac..8197e567 100644
--- a/src/libwalletqt/Wallet.h
+++ b/src/libwalletqt/Wallet.h
@@ -281,10 +281,10 @@ public:
     QString getWalletLogPath() const;
 
     // Blackalled outputs
-    Q_INVOKABLE bool blackballOutput(const QString &pubkey);
-    Q_INVOKABLE bool blackballOutputs(const QList<QString> &pubkeys, bool add);
+    Q_INVOKABLE bool blackballOutput(const QString &amount, const QString &offset);
+    Q_INVOKABLE bool blackballOutputs(const QList<QString> &outputs, bool add);
     Q_INVOKABLE bool blackballOutputs(const QString &filename, bool add);
-    Q_INVOKABLE bool unblackballOutput(const QString &pubkey);
+    Q_INVOKABLE bool unblackballOutput(const QString &amount, const QString &offset);
 
     // Rings
     Q_INVOKABLE QString getRing(const QString &key_image);