diff --git a/test/types/schema.test.ts b/test/types/schema.test.ts
index 465832aa877..3bfa731eea6 100644
--- a/test/types/schema.test.ts
+++ b/test/types/schema.test.ts
@@ -559,3 +559,13 @@ function gh11828() {
     }
   });
 }
+function gh11997() {
+  interface IUser {
+    name: string;
+  }
+
+  const userSchema = new Schema<IUser>({
+    name: { type: String, default: () => 'Hafez' }
+  });
+  userSchema.index({ name: 1 }, { weights: { name: 1 } });
+}