diff --git a/demo/tsconfig.json b/demo/tsconfig.json
index 98fd681..2626cc9 100644
--- a/demo/tsconfig.json
+++ b/demo/tsconfig.json
@@ -1,4 +1,8 @@
 {
   "extends": "@sindresorhus/tsconfig",
+  "compilerOptions": {
+    "noPropertyAccessFromIndexSignature": false,
+    "noEmit": true
+  },
   "include": ["./src"]
 }