diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/worker/job/AbstractUnassignedScanJob.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/worker/job/AbstractUnassignedScanJob.java
index 2597144140127bf..0bb6cb02a92ad30 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/worker/job/AbstractUnassignedScanJob.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/worker/job/AbstractUnassignedScanJob.java
@@ -99,7 +99,7 @@ protected List<AssignedJob> insideMachineParallelization(
                 // +------------------------------------------------------------------------------------------------+
                 ScanSource shareScanSource = instanceToScanRanges.get(0);
                 for (int i = 0; i < instanceNum; i++) {
-                    // one scan range generate instanceNum instances,
+                    // one scan range generate multiple instances,
                     // different instances reference the same scan source
                     ShareScanAssignedJob instance = new ShareScanAssignedJob(
                             instanceIndexInFragment++, shareScanIndex, this, worker, shareScanSource);