diff --git a/setcreatetime.go b/setcreatetime.go
index 99b4526..fcce487 100644
--- a/setcreatetime.go
+++ b/setcreatetime.go
@@ -117,6 +117,10 @@ func processMP4(fileInfo os.FileInfo, paths []string) {
 			log.Println("set creation_time for file ", filename, " error: ", err)
 			return
 		}
+		err = os.Chtimes(newName, t, t)
+		if err != nil {
+			log.Printf("Chtimes file %s fail: %v\n", newName, err)
+		}
 	} else {
 		log.Println("will replace old file ", filename)
 		tmpFilename := filename + ".tmp.mp4"
@@ -136,6 +140,10 @@ func processMP4(fileInfo os.FileInfo, paths []string) {
 			log.Println("move file ", tmpFilename, "to ", filename, " error")
 			return
 		}
+		err = os.Chtimes(filename, t, t)
+		if err != nil {
+			log.Printf("Chtimes file %s fail: %v\n", filename, err)
+		}
 	}
 }