diff --git a/kibot/bom/xlsx_writer.py b/kibot/bom/xlsx_writer.py
index bcdf5aed..0aa73dce 100644
--- a/kibot/bom/xlsx_writer.py
+++ b/kibot/bom/xlsx_writer.py
@@ -494,8 +494,7 @@ def _create_kicost_sheet(workbook, groups, image_data, fmt_title, fmt_info, fmt_
         set_api_status(api, True)
     # ***** DEBUG!!!
     # Test Digi-Key API
-    os.environ['DIGIKEY_SAVE_RESULTS'] = '1'
-    os.environ['DIGIKEY_FAKE_RESULTS'] = '1'
+    os.environ['DIGIKEY_CACHE_TTL'] = '-1'
     os.environ['DIGIKEY_STORAGE_PATH'] = op.abspath(op.join(op.dirname(__file__), '../../submodules/KiCost/tests/digikey'))
     logger.setLevel(1)  # Max. KiCost debug
     # ***** End of DEBUG!!!
@@ -613,7 +612,7 @@ def _create_kicost_sheet(workbook, groups, image_data, fmt_title, fmt_info, fmt_
 
 def create_kicost_sheet(workbook, groups, image_data, fmt_title, fmt_info, fmt_subtitle, fmt_head, fmt_cols, cfg):
     try:
-        _create_kicost_sheet(workbook, groups, image_data, fmt_title, fmt_info, fmt_subtitle, fmt_head, fmt_cols, cfg)
+        return _create_kicost_sheet(workbook, groups, image_data, fmt_title, fmt_info, fmt_subtitle, fmt_head, fmt_cols, cfg)
     except KiCostError as e:
         trace_dump()
         logger.error('KiCost error: `{}` ({})'.format(e.msg, e.id))