diff --git a/node/node.d.ts b/node/node.d.ts
index 14b203889c..d3fdfe414c 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -1020,8 +1020,8 @@ declare module "util" {
 }
 
 declare module "assert" {
-	function internal (booleanValue: boolean, message?: string): void;
-	module internal {
+    function internal (booleanValue: boolean, message?: string): void;
+    module internal {
         export function fail(actual: any, expected: any, message: string, operator: string): void;
         export function assert(value: any, message: string): void;
         export function ok(value: any, message?: string): void;
@@ -1035,8 +1035,8 @@ declare module "assert" {
         export function doesNotThrow(block: any, error?: any, messsage?: string): void;
         export function ifError(value: any): void;
     }
-	
-	export = internal;
+    
+    export = internal;
 }
 
 declare module "tty" {