diff --git a/services/core/java/com/android/server/wm/DragState.java b/services/core/java/com/android/server/wm/DragState.java
index 6127303..553b0ff 100644
--- a/services/core/java/com/android/server/wm/DragState.java
+++ b/services/core/java/com/android/server/wm/DragState.java
@@ -176,6 +176,8 @@
         mTransaction.transferTouchFocus(mTransferTouchFromToken, h.token);
         mTransferTouchFromToken = null;
 
+        // syncInputWindows here to ensure the input channel isn't removed before the transfer.
+        mTransaction.syncInputWindows();
         mTransaction.apply();
     }