diff --git a/docs/assets/ts/artplayer.d.ts b/docs/assets/ts/artplayer.d.ts
index 7145c8b89..b058c0052 100644
--- a/docs/assets/ts/artplayer.d.ts
+++ b/docs/assets/ts/artplayer.d.ts
@@ -547,7 +547,7 @@ declare class Player {
 }
 
 declare class Artplayer extends Player {
-    constructor(option: Option, readyCallback: (this: Artplayer) => void);
+    constructor(option: Option, readyCallback?: (this: Artplayer) => void);
 
     static instances: Artplayer[];
     static version: string;
diff --git a/packages/artplayer/types/artplayer.d.ts b/packages/artplayer/types/artplayer.d.ts
index 7145c8b89..b058c0052 100644
--- a/packages/artplayer/types/artplayer.d.ts
+++ b/packages/artplayer/types/artplayer.d.ts
@@ -547,7 +547,7 @@ declare class Player {
 }
 
 declare class Artplayer extends Player {
-    constructor(option: Option, readyCallback: (this: Artplayer) => void);
+    constructor(option: Option, readyCallback?: (this: Artplayer) => void);
 
     static instances: Artplayer[];
     static version: string;
diff --git a/test/types.test.ts b/test/types.test.ts
new file mode 100644
index 000000000..c8a90d6c7
--- /dev/null
+++ b/test/types.test.ts
@@ -0,0 +1,6 @@
+import Artplayer from '../packages/artplayer/types/artplayer';
+
+const art = new Artplayer({
+    container: '.artplayer-app',
+    url: './assets/sample/video.mp4',
+});