diff --git a/hgext/patchbomb.py b/hgext/patchbomb.py
--- a/hgext/patchbomb.py
+++ b/hgext/patchbomb.py
@@ -106,7 +106,7 @@ def makepatch(ui, repo, patchlines, opts
         while patchlines and not patchlines[0].strip():
             patchlines.pop(0)
 
-    ds = patch.diffstat(patchlines)
+    ds = patch.diffstat(patchlines, git=opts.get('git'))
     if opts.get('diffstat'):
         body += ds + '\n\n'