diff --git a/io_scene_psk_psa/__init__.py b/io_scene_psk_psa/__init__.py
index 20cfc8e..3499517 100644
--- a/io_scene_psk_psa/__init__.py
+++ b/io_scene_psk_psa/__init__.py
@@ -78,8 +78,10 @@ def register():
 
 
 def unregister():
-    del bpy.types.Scene.psa_export
     del bpy.types.Scene.psa_import
+    del bpy.types.Scene.psk_import
+    del bpy.types.Scene.psa_export
+    del bpy.types.Scene.psk_export
     bpy.types.TOPBAR_MT_file_export.remove(psk_export_menu_func)
     bpy.types.TOPBAR_MT_file_import.remove(psk_import_menu_func)
     bpy.types.TOPBAR_MT_file_export.remove(psa_export_menu_func)
diff --git a/io_scene_psk_psa/psa/exporter.py b/io_scene_psk_psa/psa/exporter.py
index 6349d2e..546b846 100644
--- a/io_scene_psk_psa/psa/exporter.py
+++ b/io_scene_psk_psa/psa/exporter.py
@@ -110,7 +110,6 @@ class PsaExportOperator(Operator, ExportHelper):
             item_layout.enabled = is_bone_filter_mode_item_available(context, identifier)
 
         if property_group.bone_filter_mode == 'BONE_GROUPS':
-            box = layout.box()
             row = box.row()
             rows = max(3, min(len(property_group.bone_group_list), 10))
             row.template_list('PSX_UL_BoneGroupList', '', property_group, 'bone_group_list', property_group, 'bone_group_list_index', rows=rows)
diff --git a/io_scene_psk_psa/psa/importer.py b/io_scene_psk_psa/psa/importer.py
index 0c08ecd..7f86078 100644
--- a/io_scene_psk_psa/psa/importer.py
+++ b/io_scene_psk_psa/psa/importer.py
@@ -249,10 +249,10 @@ class PSA_UL_ImportActionList(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
         row = layout.row(align=True)
         split = row.split(align=True, factor=0.75)
-        action_col = split.row(align=True)
-        action_col.alignment = 'LEFT'
-        action_col.prop(item, 'is_selected', icon_only=True)
-        action_col.label(text=item.action_name)
+        column = split.row(align=True)
+        column.alignment = 'LEFT'
+        column.prop(item, 'is_selected', icon_only=True)
+        column.label(text=item.action_name)
 
     def draw_filter(self, context, layout):
         row = layout.row()