diff --git a/default_profile.h b/default_profile.h
index 58f619b..9c5bfb6 100644
--- a/default_profile.h
+++ b/default_profile.h
@@ -59,6 +59,7 @@
   static const char kStorageHostName[];
   static const char kStorageName[];
   static const char kStorageOfflineMode[];
+  static const char kStoragePortalCheckInterval[];
   static const char kStoragePortalURL[];
 
   const FilePath storage_path_;