diff --git a/pages/_document.tsx b/pages/_document.js
similarity index 77%
rename from pages/_document.tsx
rename to pages/_document.js
index 4a48cfe..d01166c 100644
--- a/pages/_document.tsx
+++ b/pages/_document.js
@@ -9,11 +9,11 @@ export default class MyDocument extends Document {
     try {
       ctx.renderPage = () =>
         originalRenderPage({
-          enhanceApp: (App: any) => (props: any) =>
-            sheet.collectStyles(<App {...props} />),
+          enhanceApp: App => props => sheet.collectStyles(<App {...props} />)
         })
 
-      const initialProps = await Document.getInitialProps(ctx)
+      const initialProps = await Document.getInitialProps(ctx);
+
       return {
         ...initialProps,
         styles: (
diff --git a/tsconfig.json b/tsconfig.json
index 4fa631c..fd21301 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,11 @@
 {
   "compilerOptions": {
     "target": "es5",
-    "lib": ["dom", "dom.iterable", "esnext"],
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "esnext"
+    ],
     "allowJs": true,
     "skipLibCheck": true,
     "strict": true,
@@ -14,6 +18,13 @@
     "isolatedModules": true,
     "jsx": "preserve"
   },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
-  "exclude": ["node_modules"]
-}
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    "pages/_document.js"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}
\ No newline at end of file