diff --git a/src/lib/preferences/useragentdialog.cpp b/src/lib/preferences/useragentdialog.cpp
index 0fbc116cd..922fa88ec 100644
--- a/src/lib/preferences/useragentdialog.cpp
+++ b/src/lib/preferences/useragentdialog.cpp
@@ -78,6 +78,11 @@ UserAgentDialog::UserAgentDialog(QWidget* parent)
 
     enableGlobalComboBox(ui->changeGlobal->isChecked());
     enablePerSiteFrame(ui->changePerSite->isChecked());
+
+#if !QTWEBENGINE_DISABLED
+    ui->perSiteFrame->setVisible(false);
+    ui->changePerSite->setVisible(false);
+#endif
 }
 
 void UserAgentDialog::addSite()