diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/runtime/ThriftPlansBuilder.java b/fe/fe-core/src/main/java/org/apache/doris/qe/runtime/ThriftPlansBuilder.java
index 7fd6a2dae73b8b2..10cd29277256c60 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/runtime/ThriftPlansBuilder.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/runtime/ThriftPlansBuilder.java
@@ -340,7 +340,7 @@ private static void enableLocalShuffle(TPipelineFragmentParams currentFragmentPa
     }
 
     private static void disableLocalShuffle(TPipelineFragmentParams currentFragmentParam) {
-        // disable local shuffle, because the parallel_instances == fragments.instances.size,
+        // disable local shuffle, because the parallel_instances == fragments.instances.size.
         // if a fragment use local shuffle, all instanceJob would be LocalShuffleAssignedJob.
         // if not, all instanceJob would be StaticAssignedJob.
         // so we can cumulative parallel_instances as the fragments.instances.size.