diff --git a/resources/.eslintrc.json b/resources/.eslintrc.json
index cf7d7d995..4303c8f95 100644
--- a/resources/.eslintrc.json
+++ b/resources/.eslintrc.json
@@ -1,7 +1,4 @@
 {
 	"root": true,
-	"extends": "wikimedia/language/es6",
-	"rules": {
-		"no-var": "off"
-	}
+	"extends": "wikimedia/language/es6"
 }
diff --git a/resources/ext.popups/index.js b/resources/ext.popups/index.js
index 31cf2f9f7..5baeb0d73 100644
--- a/resources/ext.popups/index.js
+++ b/resources/ext.popups/index.js
@@ -1,7 +1,7 @@
-var types = require( './types.json' );
+const types = require( './types.json' );
 // Load Popups when touch events are not available in the browser (e.g. not a mobile device).
-var isTouchDevice = 'ontouchstart' in document.documentElement;
-var supportNotQueries;
+const isTouchDevice = 'ontouchstart' in document.documentElement;
+let supportNotQueries;
 try {
 	supportNotQueries = document.body.matches( 'div:not(.foo,.bar)' );
 	supportNotQueries = true;