diff --git a/glib/gdataset.c b/glib/gdataset.c
index cc4397ca5..d7634099d 100644
--- a/glib/gdataset.c
+++ b/glib/gdataset.c
@@ -900,7 +900,7 @@ g_datalist_id_dup_data (GData          **datalist,
  *
  * If the previous value was replaced then ownership of the
  * old value (@oldval) is passed to the caller, including
- * the registred destroy notify for it (passed out in @old_destroy).
+ * the registered destroy notify for it (passed out in @old_destroy).
  * Its up to the caller to free this as he wishes, which may
  * or may not include using @old_destroy as sometimes replacement
  * should not destroy the object in the normal way.