diff --git a/hgext/fix.py b/hgext/fix.py
--- a/hgext/fix.py
+++ b/hgext/fix.py
@@ -131,8 +131,10 @@
 import subprocess
 
 from mercurial.i18n import _
-from mercurial.node import nullrev
-from mercurial.node import wdirrev
+from mercurial.node import (
+    nullrev,
+    wdirrev,
+)
 
 from mercurial.utils import procutil