diff --git a/client/ayon_core/lib/transcoding.py b/client/ayon_core/lib/transcoding.py
index c37a0a88b7..e82905fe98 100644
--- a/client/ayon_core/lib/transcoding.py
+++ b/client/ayon_core/lib/transcoding.py
@@ -1261,9 +1261,7 @@ def oiio_color_convert(
         ])
 
     if parallel_frames:
-        oiio_cmd.extend([
-            "--parallel-frames"
-        ])
+        oiio_cmd.append("--parallel-frames")
 
     oiio_cmd.extend([
         input_arg, input_path,