diff --git a/internal/querynode/index_info.go b/internal/querynode/index_info.go
index 6f4298da01..38fdcf80e0 100644
--- a/internal/querynode/index_info.go
+++ b/internal/querynode/index_info.go
@@ -90,6 +90,7 @@ func (info *indexInfo) getFieldID() UniqueID {
 	return info.fieldID
 }
 
+// getIndexPaths returns indexPaths
 func (info *indexInfo) getIndexPaths() []string {
 	return info.indexPaths
 }