diff --git a/Graphics/DynamicGraph/Window.hs b/Graphics/DynamicGraph/Window.hs
--- a/Graphics/DynamicGraph/Window.hs
+++ b/Graphics/DynamicGraph/Window.hs
@@ -65,7 +65,7 @@
 
     closed <- lift $ newIORef False
 
-    lift $ forkOS $ void $ do
+    lift $ forkIO $ void $ do
         res <- runEitherT $ do
             res' <- lift $ createWindow width height "" Nothing Nothing
             win <- maybe (left "error creating window") return res'
diff --git a/dynamic-graph.cabal b/dynamic-graph.cabal
--- a/dynamic-graph.cabal
+++ b/dynamic-graph.cabal
@@ -1,5 +1,5 @@
 name:                dynamic-graph
-version:             0.1.0.10
+version:             0.1.0.11
 synopsis:            Draw and update graphs in real time with OpenGL
 description:         
     Draw and update graphs in real time with OpenGL. Suitable for displaying large amounts of frequently changing data. Line graphs and waterfall plots are supported, as well as axis drawing.