diff --git a/types/types.d.ts b/types/types.d.ts
index b1707c245f7..5d99ab38ee5 100644
--- a/types/types.d.ts
+++ b/types/types.d.ts
@@ -82,7 +82,7 @@ declare module 'mongoose' {
     class ObjectId extends mongodb.ObjectId {
     }
 
-    class Subdocument<IdType = any> extends Document<IdType> {
+    class Subdocument<IdType = any, TQueryHelpers = any, DocType = any> extends Document<IdType, TQueryHelpers, DocType> {
       $isSingleNested: true;
 
       /** Returns the top level document of this sub-document. */