diff --git a/src/@types/koa-slow.d.ts b/src/@types/koa-slow.d.ts
index a7908d860..e748e2cc9 100644
--- a/src/@types/koa-slow.d.ts
+++ b/src/@types/koa-slow.d.ts
@@ -8,7 +8,7 @@ declare module 'koa-slow' {
 
 	function slow(options?: ISlowOptions): Middleware;
 
-	namespace slow { } // Hack
+	namespace slow {} // Hack
 
 	export = slow;
 }