diff --git a/src/ffx/ffx.py b/src/ffx/ffx.py
index 925cca8..35989bb 100755
--- a/src/ffx/ffx.py
+++ b/src/ffx/ffx.py
@@ -599,7 +599,7 @@ def convert(ctx,
 
 
         if not cf is None:
-            cf.setArguments(mediaFileProperties.findCropArguments())
+            cf.setArguments(**(mediaFileProperties.findCropArguments()))
 
 
         ssc = ShiftedSeasonController(context)