diff --git a/airflow/dags/polygon_parse_dag.py b/airflow/dags/polygon_parse_dag.py
index 4803218..3611638 100644
--- a/airflow/dags/polygon_parse_dag.py
+++ b/airflow/dags/polygon_parse_dag.py
@@ -21,6 +21,8 @@
 )
 
 for folder in glob(table_definitions_folder):
+    if not os.path.isdir(folder):
+        continue
     dataset = folder.split('/')[-1]
 
     dag_id = f'polygon_parse_{dataset}_dag'