diff --git a/Libraries/Animated/src/nodes/AnimatedTracking.js b/Libraries/Animated/src/nodes/AnimatedTracking.js
index 5b8038f2f8a2cf..0ec517d12bd560 100644
--- a/Libraries/Animated/src/nodes/AnimatedTracking.js
+++ b/Libraries/Animated/src/nodes/AnimatedTracking.js
@@ -27,6 +27,7 @@ class AnimatedTracking extends AnimatedNode {
   _callback: ?EndCallback;
   _animationConfig: Object;
   _animationClass: any;
+  _useNativeDriver: boolean;
 
   constructor(
     value: AnimatedValue,
diff --git a/Libraries/Animated/src/nodes/AnimatedValue.js b/Libraries/Animated/src/nodes/AnimatedValue.js
index 52082a2f09536a..d5a5de9a9e48c7 100644
--- a/Libraries/Animated/src/nodes/AnimatedValue.js
+++ b/Libraries/Animated/src/nodes/AnimatedValue.js
@@ -20,6 +20,7 @@ const NativeAnimatedHelper = require('../NativeAnimatedHelper');
 
 import type Animation, {EndCallback} from '../animations/Animation';
 import type {InterpolationConfigType} from './AnimatedInterpolation';
+import type AnimatedTracking from './AnimatedTracking';
 
 const NativeAnimatedAPI = NativeAnimatedHelper.API;