diff --git a/gio/gfile.c b/gio/gfile.c
index dd64e66f1..0b63ddec6 100644
--- a/gio/gfile.c
+++ b/gio/gfile.c
@@ -6957,9 +6957,11 @@ load_contents_open_callback (GObject      *obj,
  * g_file_load_partial_contents_async: (skip)
  * @file: input #GFile
  * @cancellable: optional #GCancellable object, %NULL to ignore
- * @read_more_callback: a #GFileReadMoreCallback to receive partial data
+ * @read_more_callback: (scope call) (closure user_data): a
+ *     #GFileReadMoreCallback to receive partial data
  *     and to specify whether further data should be read
- * @callback: a #GAsyncReadyCallback to call when the request is satisfied
+ * @callback: (scope async) (closure user_data): a #GAsyncReadyCallback to call
+ *     when the request is satisfied
  * @user_data: the data to pass to the callback functions
  *
  * Reads the partial contents of a file. A #GFileReadMoreCallback should