diff --git a/types/mongoose/index.d.ts b/types/mongoose/index.d.ts
index 3cf4e4ca2a..cb8ca38408 100644
--- a/types/mongoose/index.d.ts
+++ b/types/mongoose/index.d.ts
@@ -1,6 +1,6 @@
 // Type definitions for Mongoose 5.0.1
 // Project: http://mongoosejs.com/
-// Definitions by: simonxca <https://github.com/simonxca>, horiuchi <https://github.com/horiuchi>, sindrenm <https://github.com/sindrenm>, lukasz-zak <https://github.com/lukasz-zak>, Alorel <https://github.com/Alorel>
+// Definitions by: simonxca <https://github.com/simonxca>, horiuchi <https://github.com/horiuchi>, sindrenm <https://github.com/sindrenm>, lukasz-zak <https://github.com/lukasz-zak>, Alorel <https://github.com/Alorel>, jendrikw <https://github.com/jendrikw>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.3
 
@@ -722,7 +722,7 @@ declare module "mongoose" {
     /** defaults to null */
     shardKey?: boolean;
     /** defaults to true */
-    strict?: boolean;
+    strict?: boolean | 'throw';
     /** no default */
     toJSON?: DocumentToObjectOptions;
     /** no default */
diff --git a/types/mongoose/mongoose-tests.ts b/types/mongoose/mongoose-tests.ts
index e63a0e612d..80050dad33 100644
--- a/types/mongoose/mongoose-tests.ts
+++ b/types/mongoose/mongoose-tests.ts
@@ -432,6 +432,8 @@ new mongoose.Schema({
   }
 });
 
+new mongoose.Schema({foo: String}, {strict: 'throw'});
+
 export default function(schema: mongoose.Schema) {
   schema.pre('init', function(this: mongoose.Document, next: (err?: Error) => void): void {
      console.log('success!');