diff --git a/config/samples/arcadia_v1alpha1_knowledgebase.yaml b/config/samples/arcadia_v1alpha1_knowledgebase.yaml
index aee810206..d73bc5dee 100644
--- a/config/samples/arcadia_v1alpha1_knowledgebase.yaml
+++ b/config/samples/arcadia_v1alpha1_knowledgebase.yaml
@@ -20,4 +20,4 @@ spec:
       name: dataset-playground-v1
       namespace: arcadia
     paths:
-      - dataset/dataset-playground/v1/qa.csv
+      - qa.csv
diff --git a/controllers/knowledgebase_controller.go b/controllers/knowledgebase_controller.go
index ee479cb93..75cb02d3d 100644
--- a/controllers/knowledgebase_controller.go
+++ b/controllers/knowledgebase_controller.go
@@ -244,9 +244,8 @@ func (r *KnowledgeBaseReconciler) reconcileFileGroup(ctx context.Context, log lo
 	if err = r.Get(ctx, types.NamespacedName{Name: group.Source.Name, Namespace: ns}, versionedDataset); err != nil {
 		if apierrors.IsNotFound(err) {
 			return errNoSource
-		} else {
-			return err
 		}
+		return err
 	}
 	if !versionedDataset.Status.IsReady() {
 		return errDataSourceNotReady
@@ -289,23 +288,29 @@ func (r *KnowledgeBaseReconciler) reconcileFileGroup(ctx context.Context, log lo
 
 	errs := make([]error, 0)
 	for _, path := range group.Paths {
-		fileDatail, ok := pathMap[path]
+		fileDetail, ok := pathMap[path]
 		if !ok {
-			fileDatail = &arcadiav1alpha1.FileDetails{
+			fileDetail = &arcadiav1alpha1.FileDetails{
 				Path:           path,
 				Checksum:       "",
 				LastUpdateTime: metav1.Now(),
 				Phase:          arcadiav1alpha1.FileProcessPhasePending,
 				ErrMessage:     "",
 			}
-			fileGroupDetail.FileDetails = append(fileGroupDetail.FileDetails, *fileDatail)
+			fileGroupDetail.FileDetails = append(fileGroupDetail.FileDetails, *fileDetail)
+		}
+		if versionedDataset.Spec.Dataset == nil {
+			err = fmt.Errorf("versionedDataset.Spec.Dataset is nil")
+			errs = append(errs, err)
+			fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
+			continue
 		}
-		info.Object = path
+		info.Object = filepath.Join("dataset", versionedDataset.Spec.Dataset.Name, versionedDataset.Spec.Version, path)
 		stat, err := ds.StatFile(ctx, info)
 		log.V(0).Info(fmt.Sprintf("raw StatFile:%#v", stat), "path", path)
 		if err != nil {
 			errs = append(errs, err)
-			fileDatail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
+			fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
 			continue
 		}
 
@@ -314,38 +319,38 @@ func (r *KnowledgeBaseReconciler) reconcileFileGroup(ctx context.Context, log lo
 		if !ok {
 			err = fmt.Errorf("failed to convert stat to minio.ObjectInfo:%s", path)
 			errs = append(errs, err)
-			fileDatail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
+			fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
 			continue
 		}
-		if objectStat.ETag == fileDatail.Checksum {
-			fileDatail.LastUpdateTime = metav1.Now()
+		if objectStat.ETag == fileDetail.Checksum {
+			fileDetail.LastUpdateTime = metav1.Now()
 			continue
 		}
-		fileDatail.Checksum = objectStat.ETag
+		fileDetail.Checksum = objectStat.ETag
 		tags, err := ds.GetTags(ctx, info)
 		if err != nil {
 			errs = append(errs, err)
-			fileDatail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
+			fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
 			continue
 		}
 		file, err := ds.ReadFile(ctx, info)
 		if err != nil {
 			errs = append(errs, err)
-			fileDatail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
+			fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
 			continue
 		}
 		defer file.Close()
 		if err = r.handleFile(ctx, log, file, info.Object, tags, kb, vectorStore, embedder); err != nil {
 			if errors.Is(err, errFileSkipped) {
-				fileDatail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseSkipped)
+				fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseSkipped)
 				continue
 			}
 			err = fmt.Errorf("failed to handle file:%s: %w", path, err)
 			errs = append(errs, err)
-			fileDatail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
+			fileDetail.UpdateErr(err, arcadiav1alpha1.FileProcessPhaseFailed)
 			continue
 		}
-		fileDatail.UpdateErr(nil, arcadiav1alpha1.FileProcessPhaseSucceeded)
+		fileDetail.UpdateErr(nil, arcadiav1alpha1.FileProcessPhaseSucceeded)
 	}
 	return utilerrors.NewAggregate(errs)
 }