diff --git a/hash.c b/hash.c
index 041f7d428b..a984a7df9e 100644
--- a/hash.c
+++ b/hash.c
@@ -3546,6 +3546,8 @@ rb_hash_inspect(VALUE hash)
  *    to_hash -> self
  *
  *  Returns +self+.
+ *
+ *  Related: see {Methods for Converting}[rdoc-ref:Hash@Methods+for+Converting].
  */
 static VALUE
 rb_hash_to_hash(VALUE hash)