diff --git a/types/lory.js/index.d.ts b/types/lory.js/index.d.ts
index dd37fb8efa..82c1f6fbc6 100644
--- a/types/lory.js/index.d.ts
+++ b/types/lory.js/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for lory 2.2.1
+// Type definitions for lory 2.5.3
 // Project: https://github.com/meandmax/lory/
 // Definitions by: kubosho <https://github.com/kubosho>
 //                 philip bulley <https://github.com/milkisevil>
@@ -80,6 +80,11 @@ interface LoryOptions {
      * cubic bezier easing functions: http://easings.net/de (default: 'cubic-bezier(0.455, 0.03, 0.515, 0.955)').
      */
     ease?: string;
+	
+    /**
+     * the slide index to show when the slider is initialized (	default: 0 )
+     */
+    initialIndex?: number;
 
     /**
      * if slider reached the last slide, with next click the slider goes back to the startindex (default: false).
diff --git a/types/lory.js/lory.js-tests.ts b/types/lory.js/lory.js-tests.ts
index 616073f180..f3ca0464c2 100644
--- a/types/lory.js/lory.js-tests.ts
+++ b/types/lory.js/lory.js-tests.ts
@@ -19,6 +19,7 @@ import { lory } from 'lory.js';
         rewindSpeed: 600,
         snapBackSpeed: 200,
         ease: 'ease',
+		initialIndex: 0,
         rewind: true,
         infinite: false,
         classNameFrame: 'js_frame',