diff --git a/litescope/software/driver/io.py b/litescope/software/driver/io.py
index 9f7fb6c..4deb369 100644
--- a/litescope/software/driver/io.py
+++ b/litescope/software/driver/io.py
@@ -1,4 +1,4 @@
-class LiteScopeIODriver():
+class LiteScopeIODriver:
     def __init__(self, regs, name):
         self.regs = regs
         self.name = name