diff --git a/object_facemap_auto/auto_fmap_widgets_xform.py b/object_facemap_auto/auto_fmap_widgets_xform.py
index 76bf0d3621e8cdcdfbd89981e72da9b2904b77b3..71b99cf463c125d2888a733b49a17e3464dbfc8a 100644
--- a/object_facemap_auto/auto_fmap_widgets_xform.py
+++ b/object_facemap_auto/auto_fmap_widgets_xform.py
@@ -75,7 +75,7 @@ def pose_bone_autokey(pose_bone, attr_key, attr_lock):
         except IndexError:
             is_lock = False
 
-        ob_pose.keyframe_insert(data_path, i)
+        ob_pose.keyframe_insert(data_path, frame=i)
 
 
 def pose_bone_set_attr_with_locks(pose_bone, attr_key, attr_lock, value):