diff --git a/libs/common/subliminal/refiners/__init__.py b/libs/common/subliminal/refiners/__init__.py
index bbb8d3ef..982a7597 100644
--- a/libs/common/subliminal/refiners/__init__.py
+++ b/libs/common/subliminal/refiners/__init__.py
@@ -7,6 +7,6 @@ A refiner is a simple function:
 
     :param video: the video to refine.
     :type video: :class:`~subliminal.video.Video`
-    :param \*\*kwargs: additional parameters for refiners.
+    :param **kwargs: additional parameters for refiners.
 
 """