diff --git a/string.c b/string.c
index 394fa8d332..d894b24daf 100644
--- a/string.c
+++ b/string.c
@@ -9707,6 +9707,7 @@ sym_inspect(VALUE sym)
  *  Returns the name or string corresponding to <i>sym</i>.
  *
  *     :fred.id2name   #=> "fred"
+ *     :ginger.to_s    #=> "ginger"
  */