diff --git a/browser-playground/src/client/tsconfig.json b/browser-playground/src/client/tsconfig.json
index a5f28ff..b638b84 100644
--- a/browser-playground/src/client/tsconfig.json
+++ b/browser-playground/src/client/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "lib": ["ES2022", "dom"]
+    "lib": ["ES2022", "DOM"]
   },
   "references": [
     { "path": "../service-worker" }
diff --git a/browser-playground/tsconfig.json b/browser-playground/tsconfig.json
index 564cb98..247e1bc 100644
--- a/browser-playground/tsconfig.json
+++ b/browser-playground/tsconfig.json
@@ -25,5 +25,4 @@
     "outDir": "dist",
     "composite": true
   },
-  "include": ["src/**/*.ts"],
 }