diff --git a/src/croniter/tests/test_croniter.py b/src/croniter/tests/test_croniter.py
index 51f514c..19e18cd 100755
--- a/src/croniter/tests/test_croniter.py
+++ b/src/croniter/tests/test_croniter.py
@@ -10,7 +10,6 @@
 import pytz
 
 from croniter import (
-    OVERFLOW32B_MODE,
     CroniterBadCronError,
     CroniterBadDateError,
     CroniterNotAlphaError,