diff --git a/android/keyframes/src/main/java/com/facebook/keyframes/model/keyframedmodels/KeyFramedObject.java b/android/keyframes/src/main/java/com/facebook/keyframes/model/keyframedmodels/KeyFramedObject.java
index 6ef830c..b096daa 100644
--- a/android/keyframes/src/main/java/com/facebook/keyframes/model/keyframedmodels/KeyFramedObject.java
+++ b/android/keyframes/src/main/java/com/facebook/keyframes/model/keyframedmodels/KeyFramedObject.java
@@ -39,7 +39,7 @@ public KeyFramedObject(List<T> objects, float[][][] timingCurves) {
     }
 
     mFirstDescribedFrame = mObjects.keyAt(0);
-    mLastDescribedFrame = mObjects.keyAt(listSize - 1);
+    mLastDescribedFrame = mObjects.keyAt(mObjects.size() - 1);
     mInterpolators = KeyFrameAnimationHelper.buildInterpolatorList(timingCurves);
   }