--- a/hgext/convert/hg.py
+++ b/hgext/convert/hg.py
@@ -26,7 +26,7 @@ class convert_mercurial(converter_sink):
 
     def putfile(self, f, e, data):
         self.repo.wwrite(f, data, e)
-        if self.repo.dirstate.state(f) == '?':
+        if f not in self.repo.dirstate:
             self.repo.dirstate.add(f)
 
     def copyfile(self, source, dest):
@@ -58,7 +58,7 @@ class convert_mercurial(converter_sink):
             extra['branch'] = commit.branch
         if commit.rev:
             extra['convert_revision'] = commit.rev
-            
+
         while parents:
             p1 = p2
             p2 = parents.pop(0)