diff --git a/Libraries/Vibration/Vibration.d.ts b/Libraries/Vibration/Vibration.d.ts
index 5cc57135fa7e89..6e194b320a6ede 100644
--- a/Libraries/Vibration/Vibration.d.ts
+++ b/Libraries/Vibration/Vibration.d.ts
@@ -31,7 +31,7 @@
  * V(fixed) --wait(1s)--> V(fixed) --wait(2s)--> V(fixed) --wait(3s)--> V(fixed)
  */
 export interface VibrationStatic {
-  vibrate(pattern?: number | number[] | null, repeat?: boolean | null): void;
+  vibrate(pattern?: number | number[], repeat?: boolean): void;
 
   /**
    * Stop vibration