diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/processor/TaskCallbackService.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/processor/TaskCallbackService.java
index f4ebe755ae..7e7ecd47ed 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/processor/TaskCallbackService.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/processor/TaskCallbackService.java
@@ -134,7 +134,7 @@ public class TaskCallbackService {
             ThreadUtils.sleep(pause(ntries++));
         }
 
-        throw new IllegalStateException(String.format("all available master nodes : %s are not reachable for task: {}", masterNodes, taskInstanceId));
+        throw new IllegalStateException(String.format("all available master nodes : %s are not reachable for task: %s", masterNodes, taskInstanceId));
     }
 
     public int pause(int ntries) {