diff --git a/packages/SystemUI/src/com/android/systemui/flags/Flags.java b/packages/SystemUI/src/com/android/systemui/flags/Flags.java
index 245ea219ea684..46173b872817d 100644
--- a/packages/SystemUI/src/com/android/systemui/flags/Flags.java
+++ b/packages/SystemUI/src/com/android/systemui/flags/Flags.java
@@ -142,6 +142,9 @@ public class Flags {
     public static final ResourceBooleanFlag STATUS_BAR_USER_SWITCHER =
             new ResourceBooleanFlag(602, R.bool.flag_user_switcher_chip);
 
+    public static final BooleanFlag STATUS_BAR_LETTERBOX_APPEARANCE =
+            new BooleanFlag(603, false);
+
     /***************************************/
     // 700 - dialer/calls
     public static final BooleanFlag ONGOING_CALL_STATUS_BAR_CHIP =