diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnTaskServiceImpl.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnTaskServiceImpl.java
index e3f82456c..d1009ffb5 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnTaskServiceImpl.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnTaskServiceImpl.java
@@ -426,7 +426,7 @@ public class BpmnTaskServiceImpl implements BpmnTaskService {
             vo.setComments(commentConverter.toVos(comments));
 
             HistoricVariableInstance assgineeSnapshot =
-                    variableInstanceMap.getOrDefault(INTERNAL_TASK_RELATION_ASSIGNEE_INFO_SNAPSHOT + vo.getTaskDefinitionKey()
+                    variableInstanceMap.getOrDefault(INTERNAL_TASK_RELATION_ASSIGNEE_INFO_SNAPSHOT + vo.getTaskId()
                             , null);
 
             BpmnTaskDelegateAssigner assigner = Objects.nonNull(assgineeSnapshot) ?