diff --git a/types/faker/faker-tests.ts b/types/faker/faker-tests.ts
index 15c6169368..80ce0d11a9 100644
--- a/types/faker/faker-tests.ts
+++ b/types/faker/faker-tests.ts
@@ -7,6 +7,10 @@ let resultDate: Date;
 import faker = require('faker');
 faker.locale = 'en';
 
+faker.seedValue === undefined;
+faker.seed(123);
+faker.seedValue === 123;
+
 resultStr = faker.address.zipCode();
 resultStr = faker.address.zipCode('###');
 resultStr = faker.address.zipCodeByState('AL');
diff --git a/types/faker/index.d.ts b/types/faker/index.d.ts
index 2bb30caa2e..5492ecbf94 100644
--- a/types/faker/index.d.ts
+++ b/types/faker/index.d.ts
@@ -233,6 +233,7 @@ declare namespace Faker {
 		};
 
 		seed(value: number): void;
+		seedValue?: number;
 
 		vehicle: {
 			vehicle(): string;