diff --git a/Tools/TimePlot.hs b/Tools/TimePlot.hs
--- a/Tools/TimePlot.hs
+++ b/Tools/TimePlot.hs
@@ -546,7 +546,7 @@
 edges2events :: (Ord t) => [(t,S.ByteString,Edge)] -> t -> t -> [(S.ByteString,Event t Status)]
 edges2events tes minTime maxTime = snd $ RWS.execRWS (mapM_ step tes >> flush) () M.empty 
   where
-    getTrack s = M.findWithDefault (undefined, 0, emptyStatus) s `fmap` RWS.get 
+    getTrack s = M.findWithDefault (minTime, 0, emptyStatus) s `fmap` RWS.get 
     putTrack s t = RWS.get >>= RWS.put . M.insert s t
     trackCase s whenZero withNonzero = do
       (t0, numActive, st) <- getTrack s
diff --git a/timeplot.cabal b/timeplot.cabal
--- a/timeplot.cabal
+++ b/timeplot.cabal
@@ -1,5 +1,5 @@
 name: timeplot
-version: 0.3.1
+version: 0.3.2
 cabal-version: >=1.6
 build-type: Simple
 license: BSD3