diff --git a/index.d.ts b/index.d.ts
index 1ff39fc..f792cc3 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -6,6 +6,7 @@
 export type AnimationItem = {
 
     name: string;
+    isLoaded: boolean;
     currentFrame: number;
     currentRawFrame: number;
     firstFrame: number;