diff --git a/examples/custom-map-style/src/app.js b/examples/custom-map-style/src/app.tsx
similarity index 100%
rename from examples/custom-map-style/src/app.js
rename to examples/custom-map-style/src/app.tsx
diff --git a/examples/custom-map-style/src/main.js b/examples/custom-map-style/src/main.tsx
similarity index 100%
rename from examples/custom-map-style/src/main.js
rename to examples/custom-map-style/src/main.tsx
diff --git a/examples/custom-map-style/src/store.js b/examples/custom-map-style/src/store.ts
similarity index 100%
rename from examples/custom-map-style/src/store.js
rename to examples/custom-map-style/src/store.ts
diff --git a/examples/custom-map-style/webpack.config.js b/examples/custom-map-style/webpack.config.js
index a01d7fee07..df606bc75c 100644
--- a/examples/custom-map-style/webpack.config.js
+++ b/examples/custom-map-style/webpack.config.js
@@ -29,7 +29,7 @@ const webpack = require('webpack');
 const CONFIG = {
   // bundle app.js and everything it imports, recursively.
   entry: {
-    app: resolve('./src/main.js')
+    app: resolve('./src/main.tsx')
   },
   output: {
     path: resolve(__dirname, 'build'),
diff --git a/package.json b/package.json
index 311b56fc81..a6686ac7b0 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "typedoc": "typedoc --theme markdown --out typedoc --inputFiles ./src/reducers --inputFiles ./src/actions --excludeExternals --excludeNotExported --excludePrivate",
     "example-version": "babel-node ./scripts/edit-version.js",
     "prettier-all": "prettier --write '{src,examples,test}/**/*.{js,tsx,ts}'",
-    "lint": "yarn typescript && eslint src test webpack examples/*.js examples/**/src website/*.js website/src --fix",
+    "lint": "yarn typescript && eslint src test webpack examples/*.js examples/**/src/*.{js,tsx,ts} website/*.js website/src --fix",
     "lint:css": "stylelint './src/**/*.js'",
     "typescript": "tsc --noEmit",
     "web": "(yarn && yarn install:web && yarn start:web)",