diff --git a/src/gui/accountsettings.cpp b/src/gui/accountsettings.cpp
index a3075d084a9bd..9b7087e306127 100644
--- a/src/gui/accountsettings.cpp
+++ b/src/gui/accountsettings.cpp
@@ -976,7 +976,7 @@ void AccountSettings::displayMnemonic(const QString &mnemonic)
 
     const QFont font(QStringLiteral(""), 0);
     QFontMetrics fm(font);
-    ui.lineEdit->setFixedWidth(fm.width(mnemonic));
+    ui.lineEdit->setFixedWidth(fm.horizontalAdvance(mnemonic));
     widget.resize(widget.sizeHint());
     widget.exec();
 }