diff --git a/.gitignore b/.gitignore
index 5e11d7b..26785ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@ project.index
 ## Sublime
 sublime-*
 sftp-config.json
+.eslintcache
diff --git a/Gruntfile.js b/Gruntfile.js
index 673be01..fb98b1a 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -33,6 +33,10 @@ module.exports = function ( grunt ) {
 			tasks: 'test'
 		},
 		eslint: {
+			options: {
+				reportUnusedDisableDirectives: true,
+				cache: true
+			},
 			all: [
 				'**/*.js',
 				'!**/node_modules/**',
diff --git a/modules/ext.math.js b/modules/ext.math.js
index 9426817..3517a7f 100644
--- a/modules/ext.math.js
+++ b/modules/ext.math.js
@@ -1,4 +1,4 @@
-/* eslint-disable jquery/no-global-selector */
+/* eslint-disable no-jquery/no-global-selector */
 ( function () {
 	'use strict';
 
diff --git a/package.json b/package.json
index f9dfba2..f784d59 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
 		"selenium-test": "wdio tests/selenium/wdio.conf.js"
 	},
 	"devDependencies": {
-		"eslint-config-wikimedia": "0.10.0",
+		"eslint-config-wikimedia": "0.11.0",
 		"grunt": "1.0.3",
 		"grunt-banana-checker": "0.6.0",
 		"grunt-contrib-watch": "1.1.0",