diff --git a/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java b/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
index b6c6afd523b3a..be4009838fcc4 100644
--- a/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
+++ b/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
@@ -618,7 +618,7 @@ public class DividerView extends FrameLayout implements OnTouchListener,
             mEntranceAnimationRunning = false;
             mExitAnimationRunning = false;
             if (!dismissed && !wasMinimizeInteraction) {
-                WindowManagerProxy.applyResizeSplits(snapTarget.position, mSplitLayout);
+                mWindowManagerProxy.applyResizeSplits(snapTarget.position, mSplitLayout);
             }
             if (mCallback != null) {
                 mCallback.onDraggingEnd();
@@ -889,7 +889,7 @@ public class DividerView extends FrameLayout implements OnTouchListener,
         t.hide(sc).apply();
         mTiles.releaseTransaction(t);
         int midPos = mSplitLayout.getSnapAlgorithm().getMiddleTarget().position;
-        WindowManagerProxy.applyResizeSplits(midPos, mSplitLayout);
+        mWindowManagerProxy.applyResizeSplits(midPos, mSplitLayout);
     }
 
     public void setMinimizedDockStack(boolean minimized, long animDuration,
diff --git a/packages/SystemUI/src/com/android/systemui/stackdivider/WindowManagerProxy.java b/packages/SystemUI/src/com/android/systemui/stackdivider/WindowManagerProxy.java
index 410e3dd39a0b2..e593db86bd12e 100644
--- a/packages/SystemUI/src/com/android/systemui/stackdivider/WindowManagerProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/stackdivider/WindowManagerProxy.java
@@ -37,7 +37,6 @@ import android.view.WindowManagerGlobal;
 import android.window.TaskOrganizer;
 import android.window.WindowContainerToken;
 import android.window.WindowContainerTransaction;
-import android.window.WindowOrganizer;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.systemui.TransactionPool;
@@ -112,10 +111,10 @@ public class WindowManagerProxy {
         mExecutor.execute(mSetTouchableRegionRunnable);
     }
 
-    static void applyResizeSplits(int position, SplitDisplayLayout splitLayout) {
+    void applyResizeSplits(int position, SplitDisplayLayout splitLayout) {
         WindowContainerTransaction t = new WindowContainerTransaction();
         splitLayout.resizeSplits(position, t);
-        WindowOrganizer.applyTransaction(t);
+        applySyncTransaction(t);
     }
 
     private static boolean getHomeAndRecentsTasks(List<ActivityManager.RunningTaskInfo> out,