diff --git a/Benchmark.hs b/Benchmark.hs
--- a/Benchmark.hs
+++ b/Benchmark.hs
@@ -67,8 +67,9 @@
   cleanup
   return res
 
-defaultrepo :: FilePath -> FilePath
-defaultrepo path = (path </> "_darcs" </> "prefs" </> "defaultrepo")
+defaultrepo, sources :: FilePath -> FilePath
+defaultrepo path = path </> "_darcs" </> "prefs" </> "defaultrepo"
+sources path = path </> "_darcs" </> "prefs" </> "sources"
 
 prepare :: String -> Command ()
 prepare repo = do
@@ -83,7 +84,8 @@
   liftIO $ copyTree origrepo playrepo
   echo_n "."
   wd <- pwd
-  liftIO $ writeFile (defaultrepo playrepo) (wd </> origrepo)
+  liftIO $ do writeFile (defaultrepo playrepo) (wd </> origrepo)
+              removeFile (sources playrepo) `catch` \_ -> return ()
 
 prepareIfDifferent :: String -> Command ()
 prepareIfDifferent repo = do
diff --git a/darcs-benchmark.cabal b/darcs-benchmark.cabal
--- a/darcs-benchmark.cabal
+++ b/darcs-benchmark.cabal
@@ -1,5 +1,5 @@
 name:          darcs-benchmark
-version:       0.1.2
+version:       0.1.3
 synopsis:      Comparative benchmark suite for darcs.
 
 description: A simple tool to compare performance of different Darcs 2.x