diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index 46fa716..5d99429 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -2007,6 +2007,9 @@
 extern const char kCrostiniDiskResizingName[];
 extern const char kCrostiniDiskResizingDescription[];
 
+extern const char kCrostiniUsernameName[];
+extern const char kCrostiniUsernameDescription[];
+
 extern const char kCrostiniUseBusterImageName[];
 extern const char kCrostiniUseBusterImageDescription[];