diff --git a/wis2box_api/plugins/process/csv2bufr.py b/wis2box_api/plugins/process/csv2bufr.py
index 948c690..230e0ca 100644
--- a/wis2box_api/plugins/process/csv2bufr.py
+++ b/wis2box_api/plugins/process/csv2bufr.py
@@ -145,7 +145,7 @@ def execute(self, data):
 
             if not os.path.isfile(template):
                 lt = c2bt.list_templates()
-                tn = [ x['name'] for x in lt.values()]
+                tn = [x['name'] for x in lt.values()]
                 if template not in tn:
                     raise Exception(f"Unknown template: {template}, options are: {', '.join(tn)}") # noqa
                 mappings = c2bt.load_template(template)