diff --git a/services/distributeddataservice/adapter/account/src/account_delegate_normal_impl.cpp b/services/distributeddataservice/adapter/account/src/account_delegate_normal_impl.cpp
index c40dbf1979425fd2109ba401c34b5a29407be72c..d32ce2b45bf87262895455675a5bad531b4409f5 100644
--- a/services/distributeddataservice/adapter/account/src/account_delegate_normal_impl.cpp
+++ b/services/distributeddataservice/adapter/account/src/account_delegate_normal_impl.cpp
@@ -142,8 +142,8 @@ std::string AccountDelegateNormalImpl::Sha256AccountId(const std::string &plainT
         plain = atoll(plainText.substr(plainText.size() - int64MaxLen + 1, int64MaxLen - 1).c_str());
     }
 
-    plain = htobe64(plain);
-    return Crypto::Sha256(static_cast<void *>(&plain), sizeof(plain), true);
+    auto plainVal = htobe64(plain);
+    return Crypto::Sha256(static_cast<void *>(&plainVal), sizeof(plainVal), true);
 }
 }  // namespace DistributedKv
 }  // namespace OHOS
\ No newline at end of file