diff --git a/Gruntfile.js b/Gruntfile.js
index 04ff10a10943e4ff855b2c2870bc97f8c90ae150..21b68fc558a2cd20d7f39dbb4d4897ffe0fab201 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -316,9 +316,8 @@ module.exports = function (grunt) {
 
     // Use any line that starts with ".glyphicon-" and capture the class name
     var iconClassName = /^\.(glyphicon-[^\s]+)/
-    var glyphiconsData = '# Generated on ' + (new Date()) + '\n' +
-                         '# **Don\'t edit this directly!**\n' +
-                         '# Look at the \'build-glyphicons-data\' task in Gruntfile.js\n\n';
+    var glyphiconsData = '# This file is generated via Grunt task. **Do not edit directly.** \n' +
+                         '# See the \'build-glyphicons-data\' task in Gruntfile.js.\n\n';
     for (var i = 0, len = glpyhiconsLines.length; i < len; i++) {
       var match = glpyhiconsLines[i].match(iconClassName)
 
diff --git a/_data/glyphicons.yml b/_data/glyphicons.yml
index ea6463fcb9452f096a8ba409e6e48df5be35aea1..80b4c9b086f4a98620b9d6e72a301d8483ee4a6e 100644
--- a/_data/glyphicons.yml
+++ b/_data/glyphicons.yml
@@ -1,6 +1,5 @@
-# Generated on Sun Dec 22 2013 21:00:46 GMT-0800 (PST)
-# **Don't edit this directly!**
-# Look at the 'build-glyphicons-data' task in Gruntfile.js
+# This file is generated via Grunt task. **Do not edit directly.** 
+# See the 'build-glyphicons-data' task in Gruntfile.js.
 
 - glyphicon-asterisk
 - glyphicon-plus