diff --git a/contrib/dirstatenonnormalcheck.py b/contrib/dirstatenonnormalcheck.py
--- a/contrib/dirstatenonnormalcheck.py
+++ b/contrib/dirstatenonnormalcheck.py
@@ -18,7 +18,7 @@
     """Compute nonnormal entries from dirstate's dmap"""
     res = set()
     for f, e in dmap.iteritems():
-        if e[0] != b'n' or e[3] == -1:
+        if e.state != b'n' or e.mtime == -1:
             res.add(f)
     return res