diff --git a/gtk/gtktreelistmodel.h b/gtk/gtktreelistmodel.h
index 0d405ee99d..1b358f8d6b 100644
--- a/gtk/gtktreelistmodel.h
+++ b/gtk/gtktreelistmodel.h
@@ -48,7 +48,7 @@ G_DECLARE_FINAL_TYPE (GtkTreeListRow, gtk_tree_list_row, GTK, TREE_LIST_ROW, GOb
  * gtk_tree_list_row_set_expanded() is called.
  *
  * This function can return %NULL to indicate that @item is guaranteed to be
- * a leave node and will never have children.  
+ * a leaf node and will never have children.
  * If it does not have children but may get children later, it should return
  * an empty model that is filled once children arrive.
  *