diff --git a/src/@types/deepcopy.d.ts b/src/@types/deepcopy.d.ts
index afeee51913..3eb08d5772 100644
--- a/src/@types/deepcopy.d.ts
+++ b/src/@types/deepcopy.d.ts
@@ -8,7 +8,7 @@ declare namespace deepcopy {
 		valueType: DeepcopyCustomizerValueType) => T;
 
 	interface DeepcopyOptions<T> {
-		customizer: DeepcopyCustomizer<T>
+		customizer: DeepcopyCustomizer<T>;
 	}
 
 	export function deepcopy<T>(
diff --git a/src/@types/koa-slow.d.ts b/src/@types/koa-slow.d.ts
index bca6a8490b..a7908d8607 100644
--- a/src/@types/koa-slow.d.ts
+++ b/src/@types/koa-slow.d.ts
@@ -2,13 +2,13 @@ declare module 'koa-slow' {
 	import { Middleware } from 'koa';
 
 	interface ISlowOptions {
-		url?: RegExp
-		delay?: number
+		url?: RegExp;
+		delay?: number;
 	}
 
 	function slow(options?: ISlowOptions): Middleware;
 
-	namespace slow {} // Hack
+	namespace slow { } // Hack
 
 	export = slow;
 }