diff --git a/ChangeLog b/ChangeLog
index f91d251382..a71fd26cff 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -14,7 +14,7 @@ Fri Nov 30 23:27:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
 Fri Nov 30 23:11:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* lib/rubygems/specification.rb
-	  (Gem::Specification.validate_permissions): don't check executablity
+	  (Gem::Specification.validate_permissions): don't check executability
 	  of the source on Windows.  they will be wrapped to .bat files when
 	  installing.  see [ruby-core:50388].