diff --git a/aconfig/settings_connecteddevice_flag_declarations.aconfig b/aconfig/settings_connecteddevice_flag_declarations.aconfig
index f10c019a459..b008c2082e8 100644
--- a/aconfig/settings_connecteddevice_flag_declarations.aconfig
+++ b/aconfig/settings_connecteddevice_flag_declarations.aconfig
@@ -48,3 +48,10 @@ flag {
         purpose: PURPOSE_BUGFIX
     }
 }
+
+flag {
+  name: "display_size_connected_display_setting"
+  namespace: "lse_desktop_experience"
+  description: "Allow changing display size of the connected display."
+  bug: "392853666"
+}