diff --git a/types/react-native/index.d.ts b/types/react-native/index.d.ts
index df8c1e7695..bb1948fc10 100644
--- a/types/react-native/index.d.ts
+++ b/types/react-native/index.d.ts
@@ -8458,7 +8458,7 @@ export interface VibrationIOSStatic {
  * V(fixed) --wait(1s)--> V(fixed) --wait(2s)--> V(fixed) --wait(3s)--> V(fixed)
  */
 export interface VibrationStatic {
-    vibrate(pattern: number | number[], repeat: boolean): void;
+    vibrate(pattern: number | number[], repeat?: boolean): void;
 
     /**
      * Stop vibration