diff --git a/glib/gmem.c b/glib/gmem.c
index abbd4e751..fa175df62 100644
--- a/glib/gmem.c
+++ b/glib/gmem.c
@@ -232,8 +232,8 @@ g_free (gpointer mem)
 
 /**
  * g_clear_pointer: (skip)
- * @pp: (not nullable): a pointer to a variable, struct member etc. holding a
- *    pointer
+ * @pp: (nullable) (not optional) (inout) (transfer full): a pointer to a
+ *   variable, struct member etc. holding a pointer
  * @destroy: a function to which a gpointer can be passed, to destroy *@pp
  *
  * Clears a reference to a variable.
diff --git a/glib/gstdio.c b/glib/gstdio.c
index b35a0ec1c..56a3d0242 100644
--- a/glib/gstdio.c
+++ b/glib/gstdio.c
@@ -1839,7 +1839,7 @@ g_close (gint       fd,
 
 /**
  * g_clear_fd: (skip)
- * @fd_ptr: (not nullable): a pointer to a file descriptor
+ * @fd_ptr: (not optional) (inout) (transfer full): a pointer to a file descriptor
  * @error: Used to return an error on failure
  *
  * If @fd_ptr points to a file descriptor, close it and return