diff -Naur ./thunar-volman.orig/thunar-volman-settings/main.c ./thunar-volman/thunar-volman-settings/main.c
--- ./thunar-volman.orig/thunar-volman-settings/main.c	2017-11-24 12:40:49.883100185 -0500
+++ ./thunar-volman/thunar-volman-settings/main.c	2017-11-24 12:40:55.439716611 -0500
@@ -101,7 +101,7 @@
       g_signal_connect (plug, "delete-event", G_CALLBACK (gtk_main_quit), NULL);
       gtk_widget_show (plug);
 
-      list = gtk_container_get_children (GTK_CONTAINER (gtk_dialog_get_content_area (GTK_DIALOG (dialog)));
+      list = gtk_container_get_children (GTK_CONTAINER (gtk_dialog_get_content_area (GTK_DIALOG (dialog))));
       plug_child = list->data;
       g_list_free (list);