diff --git a/ChangeLog b/ChangeLog
index 4ef948b1ab..1e3c4e956d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Aug  8 03:59:51 2015  Zachary Scott  <zzak@ruby-lang.org>
+
+        * object.c: [DOC] Improve grammar for Module#===
+          Patch by @SkyBirdSoar in documenting-ruby/ruby#52:
+          https://github.com/documenting-ruby/ruby/pull/52
+
 Sat Aug  8 03:39:33 2015  Zachary Scott  <zzak@ruby-lang.org>
 
         * hash.c: [DOC] Improve description of symbol key syntax
diff --git a/object.c b/object.c
index 99c2fb61e1..51355e1354 100644
--- a/object.c
+++ b/object.c
@@ -1521,9 +1521,9 @@ rb_mod_freeze(VALUE mod)
  *     mod === obj    -> true or false
  *
  *  Case Equality---Returns <code>true</code> if <i>obj</i> is an
- *  instance of <i>mod</i> or one of <i>mod</i>'s descendants. Of
- *  limited use for modules, but can be used in <code>case</code>
- *  statements to classify objects by class.
+ *  instance of <i>mod</i> or and instance of one of <i>mod</i>'s descendants.
+ *  Of limited use for modules, but can be used in <code>case</code> statements
+ *  to classify objects by class.
  */
 
 static VALUE