diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/distribute/PipelineDistributedPlan.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/distribute/PipelineDistributedPlan.java
index 75e91dcf3ab8ef9..d268e8da20b32f7 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/distribute/PipelineDistributedPlan.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/distribute/PipelineDistributedPlan.java
@@ -62,7 +62,7 @@ public String toString(int displayFragmentId) {
                 + "  id: " + displayFragmentId + ",\n"
                 + "  parallel: " + instanceJobs.size() + ",\n"
                 + "  fragmentJob: " + fragmentJob + ",\n"
-                + "  planNodes: {\n"
+                + "  fragment: {\n"
                 + "  " + explainString + "\n"
                 + "  },\n"
                 + "  instanceJobs: [\n" + instancesStrWithIndent + "\n"