diff --git a/client/operation.go b/client/operation.go
index 90e1e67..835e360 100644
--- a/client/operation.go
+++ b/client/operation.go
@@ -256,11 +256,7 @@ func (hc *houstonClient) launch(meta *procmeta) error {
 				go func(startFile, nextFile string) {
 					zipFile, srcFiles, err := zipLogFiles(hc.config.StorageRoot, req, startFile, nextFile)
 					if err == nil && len(zipFile) > 0 && len(srcFiles) > 0 {
-						if err = hc.uploadZipLogFile(zipFile, meta.name, meta.version); err == nil {
-							for _, oldf := range srcFiles {
-								os.Remove(oldf)
-							}
-						} else {
+						if err = hc.uploadZipLogFile(zipFile, meta.name, meta.version); err != nil {
 							logger.Println("uploadZipLogFile failed :", err)
 						}
 					} else if err != nil {