diff --git a/cidr4_merger.py b/cidr4_merger.py
index 6b802f4..5216acf 100644
--- a/cidr4_merger.py
+++ b/cidr4_merger.py
@@ -1,5 +1,4 @@
 import cProfile
-import math
 from typing import Optional
 
 Node = tuple[int, int, int]