diff --git a/package.json b/package.json
index 7cd8ac5b..5aa29d02 100644
--- a/package.json
+++ b/package.json
@@ -15,8 +15,8 @@
     "lint:fix": "yarn prettier:fix && yarn eslint:fix",
     "eslint": "eslint '{src,test,examples}/**/*.{js,ts}' --cache",
     "eslint:fix": "yarn eslint --fix",
-    "prettier": "prettier --list-different \"**/*.{js,ts,md,yml,json,html}\"",
-    "prettier:fix": "prettier --write \"**/*.{js,ts,md,yml,json,html}\"",
+    "prettier": "prettier . --check",
+    "prettier:fix": "prettier . --write",
     "build": "tsc --build",
     "test": "jest",
     "coverage": "jest --coverage",
diff --git a/src/http-proxy-middleware.ts b/src/http-proxy-middleware.ts
index b4225659..f3a1982c 100644
--- a/src/http-proxy-middleware.ts
+++ b/src/http-proxy-middleware.ts
@@ -22,7 +22,7 @@ export class HttpProxyMiddleware<TReq, TRes> {
   private logger: Logger;
 
   constructor(options: Options<TReq, TRes>) {
-    verifyConfig<TReq, TRes>(options);
+    verifyConfig<TReq, TRes>(options)
     this.proxyOptions = options;
     this.logger = getLogger(options as unknown as Options);