diff --git a/mobile/android/base/ui/PanZoomController.java b/mobile/android/base/ui/PanZoomController.java
index 78ad036977a..3842813ede8 100644
--- a/mobile/android/base/ui/PanZoomController.java
+++ b/mobile/android/base/ui/PanZoomController.java
@@ -99,7 +99,7 @@ public class PanZoomController
 
     public PanZoomController(PanZoomTarget target, EventDispatcher eventDispatcher) {
         mTarget = target;
-        mSubscroller = new SubdocumentScrollHelper(this, eventDispatcher);
+        mSubscroller = new SubdocumentScrollHelper(eventDispatcher);
         mX = new AxisX(mSubscroller);
         mY = new AxisY(mSubscroller);
 
diff --git a/mobile/android/base/ui/SubdocumentScrollHelper.java b/mobile/android/base/ui/SubdocumentScrollHelper.java
index d4ecb3a06a4..6c594a7b118 100644
--- a/mobile/android/base/ui/SubdocumentScrollHelper.java
+++ b/mobile/android/base/ui/SubdocumentScrollHelper.java
@@ -25,7 +25,6 @@ class SubdocumentScrollHelper implements GeckoEventListener {
     private static String MESSAGE_SCROLL = "Gesture:Scroll";
     private static String MESSAGE_SCROLL_ACK = "Gesture:ScrollAck";
 
-    private final PanZoomController mPanZoomController;
     private final Handler mUiHandler;
     private final EventDispatcher mEventDispatcher;
 
@@ -49,8 +48,7 @@ class SubdocumentScrollHelper implements GeckoEventListener {
      * the subdocument; we use this to decide when we have reached the end of the subdocument. */
     private boolean mScrollSucceeded;
 
-    SubdocumentScrollHelper(PanZoomController controller, EventDispatcher eventDispatcher) {
-        mPanZoomController = controller;
+    SubdocumentScrollHelper(EventDispatcher eventDispatcher) {
         // mUiHandler will be bound to the UI thread since that's where this constructor runs
         mUiHandler = new Handler();
         mPendingDisplacement = new PointF();