diff --git a/Graphics/Diagram/AlgoDiags.hs b/Graphics/Diagram/AlgoDiags.hs
index 3cf2543..ed68edb 100644
--- a/Graphics/Diagram/AlgoDiags.hs
+++ b/Graphics/Diagram/AlgoDiags.hs
@@ -1,4 +1,7 @@
 {-# OPTIONS_HADDOCK ignore-exports #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE FlexibleContexts #-}
+
 
 module Graphics.Diagram.AlgoDiags where
 
diff --git a/Graphics/Diagram/Plotter.hs b/Graphics/Diagram/Plotter.hs
index 7cc29e0..5446331 100644
--- a/Graphics/Diagram/Plotter.hs
+++ b/Graphics/Diagram/Plotter.hs
@@ -1,4 +1,6 @@
 {-# OPTIONS_HADDOCK ignore-exports #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE FlexibleContexts #-}
 
 module Graphics.Diagram.Plotter where