diff --git a/include/input/InputWindow.h b/include/input/InputWindow.h
index 2b8cc57..a065a4c 100644
--- a/include/input/InputWindow.h
+++ b/include/input/InputWindow.h
@@ -163,6 +163,7 @@
     int32_t ownerUid;
     int32_t inputFeatures;
     int32_t displayId;
+    int32_t portalToDisplayId = ADISPLAY_ID_NONE;
     InputApplicationInfo applicationInfo;
 
     void addTouchableRegion(const Rect& region);