diff --git a/include/transport/storagebackend.h b/include/transport/storagebackend.h
index 221cbdd8dda9741cb806b7d3b554f6a290734ab2..89e5cb2f50f42685785236f7f294e4dfacf2020f 100644
--- a/include/transport/storagebackend.h
+++ b/include/transport/storagebackend.h
@@ -27,7 +27,7 @@ namespace Transport {
 
 /// Represents all data needed to be stored in database.
 struct UserInfo {
-	long id;				///< id of user used as primary key in database
+	int id;				///< id of user used as primary key in database
 	std::string jid;		///< barejid of XMPP user
 	std::string uin;		///< legacy network username
 	std::string password;	///< password for legacy network