diff --git a/routers/api/v1/repo/cloudbrain.go b/routers/api/v1/repo/cloudbrain.go
index 8456014db..efb7189ed 100755
--- a/routers/api/v1/repo/cloudbrain.go
+++ b/routers/api/v1/repo/cloudbrain.go
@@ -525,7 +525,7 @@ func getAllLineFromFile(path string) int {
 }
 
 func getLastLogFromModelDir(jobName string, lines int, resultPath string) map[string]interface{} {
-	prefix := "/" + setting.CBCodePathPrefix + jobName + resultPath
+	prefix := setting.CBCodePathPrefix + jobName + resultPath
 	files, err := storage.GetOneLevelAllObjectUnderDirMinio(setting.Attachment.Minio.Bucket, prefix, "")
 	if err != nil {
 		log.Error("query cloudbrain model failed: %v", err)
@@ -586,7 +586,7 @@ func getLastLogFromModelDir(jobName string, lines int, resultPath string) map[st
 }
 
 func getLogFromModelDir(jobName string, startLine int, endLine int, resultPath string) map[string]interface{} {
-	prefix := "/" + setting.CBCodePathPrefix + jobName + resultPath
+	prefix := setting.CBCodePathPrefix + jobName + resultPath
 	files, err := storage.GetOneLevelAllObjectUnderDirMinio(setting.Attachment.Minio.Bucket, prefix, "")
 	if err != nil {
 		log.Error("query cloudbrain model failed: %v", err)