diff --git a/include/input/InputWindow.h b/include/input/InputWindow.h
index f8c759c..6a42ff6 100644
--- a/include/input/InputWindow.h
+++ b/include/input/InputWindow.h
@@ -21,6 +21,7 @@
 #include <input/InputTransport.h>
 #include <ui/Rect.h>
 #include <ui/Region.h>
+#include <ui/Transform.h>
 #include <utils/RefBase.h>
 #include <utils/Timers.h>
 
@@ -160,6 +161,9 @@
     float windowXScale = 1.0f;
     float windowYScale = 1.0f;
 
+    // Transform applied to individual windows.
+    ui::Transform transform;
+
     /*
      * This is filled in by the WM relative to the frame and then translated
      * to absolute coordinates by SurfaceFlinger once the frame is computed.