diff --git a/src/reanimated2/layoutReanimation/animationBuilder/LayoutAnimationBuilder.ts b/src/reanimated2/layoutReanimation/animationBuilder/LayoutAnimationBuilder.ts
index df4c2d56fd9..11ffe55d60d 100644
--- a/src/reanimated2/layoutReanimation/animationBuilder/LayoutAnimationBuilder.ts
+++ b/src/reanimated2/layoutReanimation/animationBuilder/LayoutAnimationBuilder.ts
@@ -19,7 +19,7 @@ export class LayoutAnimationBuilder implements ILayoutAnimationBuilder {
   overshootClampingV?: number;
   restDisplacementThresholdV?: number;
   restSpeedThresholdV?: number;
-  callbackV: (finished: boolean) => void;
+  callbackV?: (finished: boolean) => void;
 
   static duration(durationMs: number): LayoutAnimationBuilder {
     const instance = new LayoutAnimationBuilder();