diff --git a/types/lozad/index.d.ts b/types/lozad/index.d.ts
index eb0213f6c3..6257c47043 100644
--- a/types/lozad/index.d.ts
+++ b/types/lozad/index.d.ts
@@ -1,25 +1,25 @@
-// Type definitions for lozad 1.0
+// Type definitions for lozad 1.1
 // Project: https://github.com/ApoorvSaxena/lozad.js
 // Definitions by: York Yao <https://github.com/plantain-00>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
-interface Option {
-    rootMargin?: string;
-    threshold?: number;
-    load?(element: HTMLElement | HTMLCanvasElement): void;
-}
-
-interface Observer {
-    observe(): void;
-}
-
-declare function lozad(selector?: string, options?: Option): Observer;
-
 declare namespace lozad {
+    interface Option {
+        rootMargin?: string;
+        threshold?: number;
+        load?(element: HTMLElement | HTMLCanvasElement): void;
+    }
+
+    interface Observer {
+        observe(): void;
+    }
+
     const prototype: {
     };
 }
 
+declare function lozad(selector?: string, options?: lozad.Option): lozad.Observer;
+
 export as namespace lozad;
 
 export = lozad;