diff --git a/src/preferences_dialog.vala b/src/preferences_dialog.vala
index b5bfea7..8bf338d 100644
--- a/src/preferences_dialog.vala
+++ b/src/preferences_dialog.vala
@@ -273,7 +273,7 @@ namespace Pamac {
 			Gtk.TreeIter? iter;
 			Gtk.TreeSelection selection = ignorepkgs_treeview.get_selection ();
 			if (selection.get_selected (null, out iter)) {
-				ignorepkgs_liststore.remove (iter);
+				ignorepkgs_liststore.remove (ref iter);
 				var ignorepkg_string = new StringBuilder ();
 				ignorepkgs_liststore.foreach ((model, path, iter) => {
 					GLib.Value name;