diff --git a/gtk/gtklistbox.c b/gtk/gtklistbox.c
index 25be5931e3..91c08e361e 100644
--- a/gtk/gtklistbox.c
+++ b/gtk/gtklistbox.c
@@ -3805,7 +3805,7 @@ gtk_list_box_bound_model_changed (GListModel *list,
 {
   GtkListBox *box = user_data;
   GtkListBoxPrivate *priv = BOX_PRIV (user_data);
-  gint i;
+  guint i;
 
   while (removed--)
     {