diff --git a/src/widgets/dialogs/qcolordialog.cpp b/src/widgets/dialogs/qcolordialog.cpp
index 5adb4ba6da..af43ecc8df 100644
--- a/src/widgets/dialogs/qcolordialog.cpp
+++ b/src/widgets/dialogs/qcolordialog.cpp
@@ -1735,8 +1735,9 @@ QColor QColorDialog::selectedColor() const
 */
 void QColorDialog::setOption(ColorDialogOption option, bool on)
 {
-    Q_D(QColorDialog);
-    d->options->setOption(static_cast<QColorDialogOptions::ColorDialogOption>(option), on);
+    const QColorDialog::ColorDialogOptions previousOptions = options();
+    if (!(previousOptions & option) != !on)
+        setOptions(previousOptions ^ option);
 }
 
 /*!
diff --git a/src/widgets/dialogs/qfontdialog.cpp b/src/widgets/dialogs/qfontdialog.cpp
index 79aab3280f..4036dc80ab 100644
--- a/src/widgets/dialogs/qfontdialog.cpp
+++ b/src/widgets/dialogs/qfontdialog.cpp
@@ -853,8 +853,9 @@ QFont QFontDialog::selectedFont() const
 */
 void QFontDialog::setOption(FontDialogOption option, bool on)
 {
-    Q_D(QFontDialog);
-    d->options->setOption(static_cast<QFontDialogOptions::FontDialogOption>(option), on);
+    const QFontDialog::FontDialogOptions previousOptions = options();
+    if (!(previousOptions & option) != !on)
+        setOptions(previousOptions ^ option);
 }
 
 /*!