diff --git a/gtk-2.0/gtkrc b/gtk-2.0/gtkrc
index e583c78d..a205f6c9 100644
--- a/gtk-2.0/gtkrc
+++ b/gtk-2.0/gtkrc
@@ -892,7 +892,7 @@ style "xfwm-tabwin"
 	Xfwm4TabwinWidget::border-alpha = 0.9
 	Xfwm4TabwinWidget::icon-size = 64
 	Xfwm4TabwinWidget::listview-icon-size = 16
-	Xfwm4TabwinWidget::preview-size = 512
+	Xfwm4TabwinWidget::preview-size = 128
 	Xfwm4TabwinWidget::alpha = 0.8
 	Xfwm4TabwinWidget::border-radius = 10