diff --git a/build/tasks/build.js b/build/tasks/build.js
index d2a5094ec..51c2fefdb 100644
--- a/build/tasks/build.js
+++ b/build/tasks/build.js
@@ -1,5 +1,7 @@
 module.exports = function( grunt ) {
 
+var path = require( "path" );
+
 grunt.registerMultiTask( "copy", "Copy files to destination folder and replace @VERSION with pkg.version", function() {
 	function replaceVersion( source ) {
 		return source.replace( /@VERSION/g, grunt.config( "pkg.version" ) );
diff --git a/grunt.js b/grunt.js
index 493d92b96..e58c9dff1 100644
--- a/grunt.js
+++ b/grunt.js
@@ -293,7 +293,7 @@ grunt.initConfig({
 			// TODO remove items from this list once rewritten
 			return !( /(mouse|datepicker|draggable|droppable|resizable|selectable|sortable)\.js$/ ).test( file );
 		}),
-		grunt: "grunt.js",
+		grunt: [ "grunt.js", "build/tasks/*.js" ],
 		tests: "tests/unit/**/*.js"
 	},
 	csslint: {