diff --git a/workflow/tests/test_pool_and_psuedoreplicate.py b/workflow/tests/test_pool_and_psuedoreplicate.py
index fa09952ec15d9d33ef5a53d2c3d027ec4c885fea..b7a351d94adbbf351d2b6da03575395a09514801 100644
--- a/workflow/tests/test_pool_and_psuedoreplicate.py
+++ b/workflow/tests/test_pool_and_psuedoreplicate.py
@@ -3,6 +3,7 @@
 import pytest
 import pandas as pd
 from io import StringIO
+import os
 import pool_and_psuedoreplicate
 
 test_output_path = os.path.dirname(os.path.abspath(__file__)) + \