diff --git a/Tools/TimePlot/Conf.hs b/Tools/TimePlot/Conf.hs
--- a/Tools/TimePlot/Conf.hs
+++ b/Tools/TimePlot/Conf.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE CPP #-}
+{-# LANGUAGE CPP, FlexibleContexts#-}
 module Tools.TimePlot.Conf (
     ConcreteConf(..),
     Conf,
diff --git a/timeplot.cabal b/timeplot.cabal
--- a/timeplot.cabal
+++ b/timeplot.cabal
@@ -1,5 +1,5 @@
 name: timeplot
-version: 1.0.29
+version: 1.0.30
 cabal-version: >=1.6
 build-type: Simple
 license: BSD3