diff --git a/types/expo/index.d.ts b/types/expo/index.d.ts
index f51d2d13b6..4e7a0ebdb3 100644
--- a/types/expo/index.d.ts
+++ b/types/expo/index.d.ts
@@ -761,7 +761,7 @@ export interface RecordingOptions {
 }
 
 export class CameraObject {
-    takePictureAsync(options: PictureOptions): Promise<PictureResponse>;
+    takePictureAsync(options?: PictureOptions): Promise<PictureResponse>;
     recordAsync(options: RecordingOptions): Promise<{ uri: string; }>;
     stopRecording(): void;
     getSupportedRatiosAsync(): Promise<string[]>; // Android only