diff --git a/packages/api/src/utils/usernamePolicy.ts b/packages/api/src/utils/usernamePolicy.ts
index 066a5849b..d350ef534 100644
--- a/packages/api/src/utils/usernamePolicy.ts
+++ b/packages/api/src/utils/usernamePolicy.ts
@@ -42,6 +42,7 @@ const RESERVED_NAMES = new Set([
   'contact',
   'create',
   'delete',
+  '_debug',
   'discover',
   'direct_messages',
   'documentation',
diff --git a/packages/web/pages/debug/pwa-share.tsx b/packages/web/pages/_debug/pwa-share.tsx
similarity index 100%
rename from packages/web/pages/debug/pwa-share.tsx
rename to packages/web/pages/_debug/pwa-share.tsx