diff --git a/backend/utils/convert/convert.go b/backend/utils/convert/convert.go
index e821a8e..f39f7bf 100644
--- a/backend/utils/convert/convert.go
+++ b/backend/utils/convert/convert.go
@@ -253,5 +253,5 @@ func SaveAs(str, format, decode string, customDecoder []CmdConvert) (value strin
 			}
 		}
 	}
-	return str, nil
+	return
 }