diff --git a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/runner/MasterTaskExecThreadTest.java b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/runner/MasterTaskExecThreadTest.java
index f6fdfaab63..c1e58592e7 100644
--- a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/runner/MasterTaskExecThreadTest.java
+++ b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/runner/MasterTaskExecThreadTest.java
@@ -114,6 +114,7 @@ public class MasterTaskExecThreadTest {
         taskInstance.setTaskType("SHELL");
         taskInstance.setId(252612);
         taskInstance.setName("C");
+        taskInstance.setTaskJson("{}");
         taskInstance.setProcessInstanceId(10111);
         taskInstance.setState(ExecutionStatus.SUBMITTED_SUCCESS);
         return taskInstance;