diff --git a/Gruntfile.js b/Gruntfile.js
index 010f71d318f27fd9ef8307f732c0c5f44c4f923c..4d5671565c1b444e85c60e087f34c8c71d020851 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -128,6 +128,7 @@ module.exports = function (grunt) {
       customize: {
         options: {
           banner: '<%= bannerDocs %>',
+          preserveComments: 'some',
           report: 'min'
         },
         src: [
@@ -144,6 +145,7 @@ module.exports = function (grunt) {
       docsJs: {
         options: {
           banner: '<%= bannerDocs %>',
+          preserveComments: 'some',
           report: 'min'
         },
         src: [