diff --git a/gui/options.cpp b/gui/options.cpp
index 547ab0f3c62..d2369b9764d 100644
--- a/gui/options.cpp
+++ b/gui/options.cpp
@@ -141,8 +141,8 @@ void OptionsDialog::init() {
 	_subSpeedDesc = 0;
 	_subSpeedSlider = 0;
 	_subSpeedLabel = 0;
-	_oldTheme = ConfMan.get("gui_theme");
-
+	_oldTheme = g_gui.theme()->getThemeId(); 
+	
 	// Retrieve game GUI options
 	_guioptions = 0;
 	if (ConfMan.hasKey("guioptions", _domain)) {