diff --git a/node/node.d.ts b/node/node.d.ts
index ef959a86b6..f7e07a3658 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -1075,10 +1075,21 @@ declare module "util" {
 }
 
 declare module "assert" {
-    function internal (booleanValue: boolean, message?: string): void;
+    function internal (value: any, 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 class AssertionError implements Error {
+            name: string;
+            message: string;
+            actual: any;
+            expected: any;
+            operator: string;
+            generatedMessage: boolean;
+
+            constructor(options?: {message?: string; actual?: any; expected?: any;
+                                  operator?: string; stackStartFunction?: Function});
+        }
+
+        export function fail(actual?: any, expected?: any, message?: string, operator?: string): void;
         export function ok(value: any, message?: string): void;
         export function equal(actual: any, expected: any, message?: string): void;
         export function notEqual(actual: any, expected: any, message?: string): void;
@@ -1086,8 +1097,10 @@ declare module "assert" {
         export function notDeepEqual(acutal: any, expected: any, message?: string): void;
         export function strictEqual(actual: any, expected: any, message?: string): void;
         export function notStrictEqual(actual: any, expected: any, message?: string): void;
-        export function throws(block: any, error?: any, messsage?: string): void;
-        export function doesNotThrow(block: any, error?: any, messsage?: string): void;
+        export function throws(block: Function, error?: Function, message?: string): void;
+        export function throws(block: Function, error?: RegExp, message?: string): void;
+        export function throws(block: Function, error?: (err: any) => boolean, message?: string): void;
+        export function doesNotThrow(block: Function, message?: string): void;
         export function ifError(value: any): void;
     }