diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
index f167710c..1216a229 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
@@ -159,7 +159,7 @@ public class EssService {
     public void saveContractSnapshot(String essContractId) {
         EssContract c = transactionTemplate.execute(unused -> {
             EssContract contract = essContractDao.getOrThrow(essContractId);
-            contract.getRecordExt().setShouldDownloadContract(true);
+            contract.getOrCreateExt().setShouldDownloadContract(true);
             essContractDao.updateExt(contract);
             return contract;
         });