diff --git a/src/knewpassworddialog.h b/src/knewpassworddialog.h
--- a/src/knewpassworddialog.h
+++ b/src/knewpassworddialog.h
@@ -93,6 +93,12 @@
      */
     QString prompt() const;
 
+    /**
+     * Sets the icon that appears next to the prompt in the dialog.  The default icon represent a simple key.
+     * @since 5.63
+     */
+    void setIcon(const QIcon &icon);
+
     /**
      * Sets the pixmap that appears next to the prompt in the dialog.  The default pixmap represent a simple key.
      *
diff --git a/src/knewpassworddialog.cpp b/src/knewpassworddialog.cpp
--- a/src/knewpassworddialog.cpp
+++ b/src/knewpassworddialog.cpp
@@ -51,11 +51,8 @@
 void KNewPasswordDialog::KNewPasswordDialogPrivate::init()
 {
     ui.setupUi(q);
+    q->setIcon(QIcon::fromTheme(QStringLiteral("dialog-password")));
 
-    QStyleOption option;
-    option.initFrom(q);
-    const int iconSize = q->style()->pixelMetric(QStyle::PM_MessageBoxIconSize, &option, q);
-    ui.labelIcon->setPixmap(QIcon::fromTheme(QStringLiteral("dialog-password")).pixmap(iconSize, iconSize));
     ui.statusMsgWidget->hide();
 
     connect(ui.pwdWidget, SIGNAL(passwordStatusChanged()), q, SLOT(_k_passwordStatusChanged()));
@@ -119,6 +116,14 @@
     return d->ui.labelPrompt->text();
 }
 
+void KNewPasswordDialog::setIcon(const QIcon &icon)
+{
+    QStyleOption option;
+    option.initFrom(this);
+    const int iconSize = style()->pixelMetric(QStyle::PM_MessageBoxIconSize, &option, this);
+    d->ui.labelIcon->setPixmap(icon.pixmap(iconSize, iconSize));
+}
+
 void KNewPasswordDialog::setPixmap(const QPixmap &pixmap)
 {
     d->ui.labelIcon->setPixmap(pixmap);
diff --git a/src/kpassworddialog.h b/src/kpassworddialog.h
--- a/src/kpassworddialog.h
+++ b/src/kpassworddialog.h
@@ -147,6 +147,12 @@
      */
     QString prompt() const;
 
+    /**
+     * Set the icon that appears next to the prompt.
+     * @since 5.63
+     */
+    void setIcon(const QIcon &icon);
+
     /**
      * set an image that appears next to the prompt.
      */
diff --git a/src/kpassworddialog.cpp b/src/kpassworddialog.cpp
--- a/src/kpassworddialog.cpp
+++ b/src/kpassworddialog.cpp
@@ -123,10 +123,15 @@
 
     QRect desktop = QApplication::desktop()->screenGeometry(q->topLevelWidget());
     q->setMinimumWidth(qMin(1000, qMax(q->sizeHint().width(), desktop.width() / 4)));
+    q->setIcon(QIcon::fromTheme(QStringLiteral("dialog-password")));
+}
+
+void KPasswordDialog::setIcon(const QIcon &icon)
+{
     QStyleOption option;
-    option.initFrom(q);
-    const int iconSize = q->style()->pixelMetric(QStyle::PM_MessageBoxIconSize, &option, q);
-    q->setPixmap(QIcon::fromTheme(QStringLiteral("dialog-password")).pixmap(iconSize));
+    option.initFrom(this);
+    const int iconSize = style()->pixelMetric(QStyle::PM_MessageBoxIconSize, &option, this);
+    setPixmap(icon.pixmap(iconSize));
 }
 
 void KPasswordDialog::setPixmap(const QPixmap &pixmap)