diff --git a/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/AccountExecutor.java b/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/AccountExecutor.java
index c949dec6..b4cb8000 100644
--- a/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/AccountExecutor.java
+++ b/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/AccountExecutor.java
@@ -63,7 +63,9 @@ public class AccountExecutor implements AccountApi {
     public SingleResponse<AccountCO> add(AccountAddCmd cmd) {
         smsRemote.signValidCode(cmd.getPhone(), cmd.getVerificationCode());
         AccountEntity entity = new AccountEntity();
-        entity.setUserName(cmd.getUserName());
+        if (cmd.getUserName() == null) {
+            entity.setUserName(cmd.getAccount());
+        }
         entity.setAccount(cmd.getAccount());
         entity.setPhone(cmd.getPhone());
         entity.setPassword(cmd.getPassword());