diff --git a/core/java/android/view/SurfaceControl.java b/core/java/android/view/SurfaceControl.java
index 3b15456..22329f4 100644
--- a/core/java/android/view/SurfaceControl.java
+++ b/core/java/android/view/SurfaceControl.java
@@ -16,10 +16,13 @@
 
 package android.view;
 
+import static android.view.WindowManager.LayoutParams.INVALID_WINDOW_TYPE;
+
 import android.graphics.Bitmap;
 import android.graphics.GraphicBuffer;
 import android.graphics.Rect;
 import android.graphics.Region;
+import android.os.Binder;
 import android.os.IBinder;
 import android.util.Log;
 import android.view.Surface.OutOfResourcesException;
@@ -302,7 +305,7 @@
     public SurfaceControl(SurfaceSession session,
             String name, int w, int h, int format, int flags)
                     throws OutOfResourcesException {
-        this(session, name, w, h, format, flags, null, -1, -1);
+        this(session, name, w, h, format, flags, null, INVALID_WINDOW_TYPE, Binder.getCallingUid());
     }
 
     public SurfaceControl(SurfaceSession session, String name, int w, int h, int format, int flags,
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 8445b37..3f91476 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -743,6 +743,12 @@
         public static final int LAST_SYSTEM_WINDOW      = 2999;
 
         /**
+         * @hide
+         * Used internally when there is no suitable type available.
+         */
+        public static final int INVALID_WINDOW_TYPE = -1;
+
+        /**
          * Return true if the window type is an alert window.
          *
          * @param type The window type.
diff --git a/services/core/java/com/android/server/wm/WindowSurfacePlacer.java b/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
index ddd1ca5..e576f2f 100644
--- a/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
+++ b/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
@@ -41,6 +41,7 @@
 import android.graphics.Canvas;
 import android.graphics.PixelFormat;
 import android.graphics.Rect;
+import android.os.Binder;
 import android.os.Debug;
 import android.os.Trace;
 import android.util.ArraySet;
@@ -683,9 +684,11 @@
             final DisplayInfo displayInfo = displayContent.getDisplayInfo();
 
             // Create a new surface for the thumbnail
+            WindowState window = appToken.findMainWindow();
             SurfaceControl surfaceControl = new SurfaceControl(mService.mFxSession,
                     "thumbnail anim", dirty.width(), dirty.height(),
-                    PixelFormat.TRANSLUCENT, SurfaceControl.HIDDEN);
+                    PixelFormat.TRANSLUCENT, SurfaceControl.HIDDEN,
+                    appToken.windowType, window.mOwnerUid);
             surfaceControl.setLayerStack(display.getLayerStack());
             if (SHOW_TRANSACTIONS) {
                 Slog.i(TAG, "  THUMBNAIL " + surfaceControl + ": CREATE");