diff --git a/.travis.yml b/.travis.yml
index 9e5ea13..f0705de 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,13 +31,13 @@ matrix:
       script:
         - yarn
         - yarn build
-        - node_modules/eslint/bin/eslint.js ui-src
+        - yarn lint
     - language: node_js
       node_js: "lts/*"
       script:
         - yarn
         - yarn build
-        - node_modules/eslint/bin/eslint.js ui-src
+        - yarn lint
   allow_failures:
     - rust: nightly
 cache:
diff --git a/package.json b/package.json
index 0ae1210..b1b5cd6 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,8 @@
   },
   "scripts": {
     "start": "webpack-dev-server --mode development --config webpack/dev.config.js --progress",
-    "build": "webpack --mode production --config webpack/prod.config.js"
+    "build": "webpack --mode production --config webpack/prod.config.js",
+    "lint": "eslint ui-src"
   },
   "dependencies": {
     "jquery": "^3.2.1",
diff --git a/ui-src/NVRApplication.js b/ui-src/NVRApplication.js
index 14a40df..87622f1 100644
--- a/ui-src/NVRApplication.js
+++ b/ui-src/NVRApplication.js
@@ -382,7 +382,7 @@ export default class NVRApplication {
    * Start the application.
    */
   start() {
-    let nav = $('#nav');
+    const nav = $('#nav');
 
     $('#toggle-nav').click(() => {
       nav.toggle('slide');
diff --git a/ui-src/lib/views/RecordingsView.js b/ui-src/lib/views/RecordingsView.js
index f42113b..1c87424 100644
--- a/ui-src/lib/views/RecordingsView.js
+++ b/ui-src/lib/views/RecordingsView.js
@@ -112,7 +112,8 @@ export default class RecordingsView {
         $('<tr class="hdr">').append(
             $(
                 _columnOrder
-                    .map((name) => `<th class="${name}">${_columnLabels[name]}</th>`)
+                    .map((name) =>
+                      `<th class="${name}">${_columnLabels[name]}</th>`)
                     .join('')
             )
         ),
diff --git a/ui-src/lib/views/VideoDialogView.js b/ui-src/lib/views/VideoDialogView.js
index f695db8..ed54811 100644
--- a/ui-src/lib/views/VideoDialogView.js
+++ b/ui-src/lib/views/VideoDialogView.js
@@ -103,10 +103,10 @@ export default class VideoDialogView {
     if (narrowWindow) {
       console.log('Narrow window; starting video in full-screen mode.');
       videoDomElement.requestFullscreen();
-      videoDomElement.addEventListener('fullscreenchange', (event) => {
+      videoDomElement.addEventListener('fullscreenchange', () => {
         if (document.fullscreenElement !== videoDomElement) {
           console.log('Closing video because user exited full-screen mode.');
-          this.dialogElement_.dialog("close");
+          this.dialogElement_.dialog('close');
         }
       });
     }