diff --git a/thunar/thunar-window.c b/thunar/thunar-window.c
index 71ffae01fb9cabc5704ddbc3c56356ab14e603ed..cf709d027ac6dd01050a91bffd078ae8b6df22cb 100644
--- a/thunar/thunar-window.c
+++ b/thunar/thunar-window.c
@@ -3233,6 +3233,8 @@ G_GNUC_END_IGNORE_DEPRECATIONS
       gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
       gtk_widget_show (button);
 
+      gtk_window_set_default_size (GTK_WINDOW (dialog), 600, -1);
+
       gtk_dialog_run (GTK_DIALOG (dialog));
       gtk_widget_destroy (dialog);
     }