--- a/mercurial/dirstate.py	Tue Jun 05 19:26:36 2007 -0300
+++ b/mercurial/dirstate.py	Tue Jun 05 19:55:27 2007 -0300
@@ -358,8 +358,9 @@
             e = struct.pack(self.format, e[0], e[1], e[2], e[3], len(f))
             cs.write(e)
             cs.write(f)
-        st = self.opener("dirstate", "w", atomic=True)
+        st = self.opener("dirstate", "w", atomictemp=True)
         st.write(cs.getvalue())
+        st.rename()
         self.dirty = 0
 
     def filterfiles(self, files):