diff --git a/src/ui/settingsdialog.h b/src/ui/settingsdialog.h
index d96c775aa..15db86d0e 100644
--- a/src/ui/settingsdialog.h
+++ b/src/ui/settingsdialog.h
@@ -98,7 +98,7 @@ class SettingsDialog : public QDialog {
   void FadingOptionsChanged();
   void RgPreampChanged(int value);
 
-  void SongInfoFontSizeChanged(double value);
+  void SongInfoFontSizeChanged(qreal value);
 
   // Background streams.
   void EnableStream(bool enabled);