diff --git a/Tools/TimePlot/Source.hs b/Tools/TimePlot/Source.hs
--- a/Tools/TimePlot/Source.hs
+++ b/Tools/TimePlot/Source.hs
@@ -8,7 +8,7 @@
 import Tools.TimePlot.Types
 
 readSource :: (Show t) => (B.ByteString -> Maybe (t,B.ByteString)) -> FilePath -> IO [(t, InEvent)]
-readSource readTime f = (map parseLine . filter (not . B.null) . blines) `fmap` B.readFile f
+readSource readTime f = (map parseLine . filter (not . B.null) . blines) `fmap` (if f == "-" then B.getContents else B.readFile f)
   where
     blines   = map pruneLF . B.split '\n'
     pruneLF b | not (B.null b) && (B.last b == '\r') = B.init b
diff --git a/timeplot.cabal b/timeplot.cabal
--- a/timeplot.cabal
+++ b/timeplot.cabal
@@ -1,5 +1,5 @@
 name: timeplot
-version: 1.0.17
+version: 1.0.18
 cabal-version: >=1.6
 build-type: Simple
 license: BSD3