diff --git a/types/simpl-schema/index.d.ts b/types/simpl-schema/index.d.ts
index b09a8fde96..c59833b12e 100644
--- a/types/simpl-schema/index.d.ts
+++ b/types/simpl-schema/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/aldeed/simple-schema-js
 // Definitions by: Andreas Richter <https://github.com/arichter83>
 //                 Qkramer <https://github.com/Qkramer>
+//                 Deskoh <https://github.com/deskoh>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 export interface ValidationContext extends SimpleSchemaValidationContextStatic {
@@ -133,7 +134,7 @@ interface SimpleSchemaStatic {
   newContext(): ValidationContext;
   objectKeys(keyPrefix: any): any[];
   validate(obj: any, options?: ValidationOption): void;
-  validator(options: ValidationOption): () => boolean;
+  validator(options?: ValidationOption): () => boolean;
   RegEx: {
       Email: RegExp;
       EmailWithTLD: RegExp;
diff --git a/types/simpl-schema/simpl-schema-tests.ts b/types/simpl-schema/simpl-schema-tests.ts
index a3555c4428..48f246261e 100644
--- a/types/simpl-schema/simpl-schema-tests.ts
+++ b/types/simpl-schema/simpl-schema-tests.ts
@@ -35,6 +35,12 @@ StringSchema.validate({
     regExpString: "id"
 }, {keys: ['basicString']});
 
+StringSchema.validator();
+
+StringSchema.validator({
+    clean: true
+});
+
 const StringSchemaWithOptions = new SimpleSchema({
     basicString: {
         type: String