diff --git a/cdc/sink/codec/craft/model.go b/cdc/sink/codec/craft/model.go
index 61ea83098f1..823f96e642a 100644
--- a/cdc/sink/codec/craft/model.go
+++ b/cdc/sink/codec/craft/model.go
@@ -498,7 +498,7 @@ func (b *RowChangedEventBuffer) Size() int {
 	return b.estimatedSize
 }
 
-// Number of rows batched in this buffer
+// RowsCount return Number of rows batched in this buffer
 func (b *RowChangedEventBuffer) RowsCount() int {
 	return b.eventsCount
 }