diff --git a/ChangeLog b/ChangeLog
index 0e9f17f96b..56048e412a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat Nov  9 15:00:16 2013  Zachary Scott  <e@zzak.io>
+
+	* io.c: [DOC] ARGF.gets may return nil [Bug #9029] patch by znz
+
 Sat Nov  9 14:54:52 2013  Zachary Scott  <e@zzak.io>
 
 	* lib/rss/*: [DOC] document various constants @steveklabnik [Bug #8812]
diff --git a/io.c b/io.c
index 2783a7a0d2..053e8f3b0e 100644
--- a/io.c
+++ b/io.c
@@ -7965,16 +7965,16 @@ rb_f_gets(int argc, VALUE *argv, VALUE recv)
 
 /*
  *  call-seq:
- *     ARGF.gets(sep=$/)     -> string
- *     ARGF.gets(limit)      -> string
- *     ARGF.gets(sep, limit) -> string
+ *     ARGF.gets(sep=$/)     -> string or nil
+ *     ARGF.gets(limit)      -> string or nil
+ *     ARGF.gets(sep, limit) -> string or nil
  *
  *  Returns the next line from the current file in +ARGF+.
  *
  *  By default lines are assumed to be separated by +$/+; to use a different
  *  character as a separator, supply it as a +String+ for the _sep_ argument.
  *
- *  The optional  _limit_ argument specifies how many characters of each line
+ *  The optional _limit_ argument specifies how many characters of each line
  *  to return. By default all characters are returned.
  *
  */