diff --git a/litex/gen/util/misc.py b/litex/gen/util/misc.py
index ff2240bc5..0eadc2bf7 100644
--- a/litex/gen/util/misc.py
+++ b/litex/gen/util/misc.py
@@ -1,4 +1,4 @@
-from fractions import gcd
+from math import gcd
 import collections