diff --git a/ams/server/src/main/java/com/netease/arctic/server/optimizing/TaskRuntime.java b/ams/server/src/main/java/com/netease/arctic/server/optimizing/TaskRuntime.java
index 15834d42cf..85dfaf76fb 100644
--- a/ams/server/src/main/java/com/netease/arctic/server/optimizing/TaskRuntime.java
+++ b/ams/server/src/main/java/com/netease/arctic/server/optimizing/TaskRuntime.java
@@ -235,7 +235,7 @@ public String getFailReason() {
   }
 
   public long getCostTime() {
-    if (endTime != ArcticServiceConstants.INVALID_TIME) {
+    if (endTime == ArcticServiceConstants.INVALID_TIME) {
       long elapse = System.currentTimeMillis() - startTime;
       return Math.max(0, elapse) + costTime;
     }