diff --git a/lib/io.dart b/lib/io.dart
index d78fd9e4d972edf14b7232d0d84410f75161055e..66a9bfb5c9b2180f45caf484f38e6901cdd23d20 100644
--- a/lib/io.dart
+++ b/lib/io.dart
@@ -12,7 +12,7 @@ extension MinioX on Minio {
     String bucket,
     String object,
     String filePath, 
-    {void Function(int)? onProgress,},
+    void Function(int)? onProgress,
     [Map<String, String>? metadata,]) async {
     MinioInvalidBucketNameError.check(bucket);
     MinioInvalidObjectNameError.check(object);