diff --git a/tests/test_pdb.py b/tests/test_pdb.py
index 1f3d48a..4d81426 100644
--- a/tests/test_pdb.py
+++ b/tests/test_pdb.py
@@ -1,6 +1,5 @@
 import os
 from pathlib import Path
-import os
 import pytest
 
 from arctic3d.modules.pdb import (