diff --git a/ChangeLog b/ChangeLog
index 4b437bac0b..c6fd8f654d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Feb  1 06:10:49 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/securerandom.rb: [DOC] Add note on require for examples
+	  Based on a patch by @schneems [Fixes GH-518] [ci skip]
+	  https://github.com/ruby/ruby/pull/518
+
 Sat Feb  1 06:04:56 2014  Zachary Scott  <e@zzak.io>
 
 	* numeric.c: [DOC] Fix typo in example for #step [ci skip]
diff --git a/lib/securerandom.rb b/lib/securerandom.rb
index 4f2c35cabd..3ff5075023 100644
--- a/lib/securerandom.rb
+++ b/lib/securerandom.rb
@@ -8,6 +8,10 @@ end
 # This library is an interface for secure random number generator which is
 # suitable for generating session key in HTTP cookies, etc.
 #
+# You can use this library in your application by requiring it:
+#
+#   require 'securerandom'
+#
 # It supports following secure random number generators.
 #
 # * openssl
@@ -18,6 +22,8 @@ end
 #
 # Hexadecimal string.
 #
+#   require 'securerandom'
+#
 #   p SecureRandom.hex(10) #=> "52750b30ffbc7de3b362"
 #   p SecureRandom.hex(10) #=> "92b15d6c8dc4beb5f559"
 #   p SecureRandom.hex(13) #=> "39b290146bea6ce975c37cfc23"