--- a/hgext/churn.py	Wed Dec 12 02:38:14 2012 +0100
+++ b/hgext/churn.py	Wed Dec 12 02:38:14 2012 +0100
@@ -144,8 +144,10 @@
     if not rate:
         return
 
-    sortkey = ((not opts.get('sort')) and (lambda x: -sum(x[1])) or None)
-    rate.sort(key=sortkey)
+    if opts.get('sort'):
+        rate.sort()
+    else:
+        rate.sort(key=lambda x: (-sum(x[1]), x))
 
     # Be careful not to have a zero maxcount (issue833)
     maxcount = float(max(sum(v) for k, v in rate)) or 1.0