diff --git a/hgext/notify.py b/hgext/notify.py
--- a/hgext/notify.py
+++ b/hgext/notify.py
@@ -341,7 +341,8 @@ class notifier(object):
         maxdiff = int(self.ui.config('notify', 'maxdiff', 300))
         prev = ctx.p1().node()
         ref = ref and ref.node() or ctx.node()
-        chunks = patch.diff(self.repo, prev, ref, opts=patch.diffopts(self.ui))
+        chunks = patch.diff(self.repo, prev, ref,
+                            opts=patch.diffallopts(self.ui))
         difflines = ''.join(chunks).splitlines()
 
         if self.ui.configbool('notify', 'diffstat', True):