diff --git a/src/com/android/dialer/widget/ViewDragHelper.java b/src/com/android/dialer/widget/ViewDragHelper.java
index 6881e4b..3d55ad4 100644
--- a/src/com/android/dialer/widget/ViewDragHelper.java
+++ b/src/com/android/dialer/widget/ViewDragHelper.java
@@ -1454,6 +1454,9 @@
      * @param target The child view that is dispatching the nested scroll.
      */
     public void startNestedScroll(View target) {
+        if (mVelocityTracker == null) {
+            mVelocityTracker = VelocityTracker.obtain();
+        }
         setDragState(STATE_DRAGGING);
         mCapturedView = target;
     }