diff --git a/openmc/executor.py b/openmc/executor.py
index ebd1a450bc..55e16a711b 100644
--- a/openmc/executor.py
+++ b/openmc/executor.py
@@ -1,6 +1,5 @@
 from collections.abc import Iterable
 from numbers import Integral
-import re
 import subprocess
 
 import openmc