diff --git a/include/bank.h b/include/bank.h
index 1b035d9..578b64a 100644
--- a/include/bank.h
+++ b/include/bank.h
@@ -56,7 +56,7 @@ public:
     bool Contains(const std::string &name) const noexcept;
     bool AdminVerifyAccount(const std::string &name) noexcept;
 
-    BankResponse AddUser(const std::string &name, uint32_t init_bal, std::string &&init_pass) noexcept;
+    BankResponse AddUser(const std::string &name, uint32_t init_bal, const std::string &init_pass) noexcept;
     BankResponse DelUser(const std::string &name) noexcept;
     void DelSelf(const std::string &name) noexcept;