diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index fa78a2b4aad8c..26cffae7459c8 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -5928,6 +5928,10 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
         if (!super.prepareSync()) {
             return false;
         }
+        if (mIsWallpaper) {
+            // TODO(b/233286785): Add sync support to wallpaper.
+            return false;
+        }
         // In the WindowContainer implementation we immediately mark ready
         // since a generic WindowContainer only needs to wait for its
         // children to finish and is immediately ready from its own