diff --git a/rhine/src/FRP/Rhine/ClSF/Core.hs b/rhine/src/FRP/Rhine/ClSF/Core.hs
index 44c78ffe..fc65a873 100644
--- a/rhine/src/FRP/Rhine/ClSF/Core.hs
+++ b/rhine/src/FRP/Rhine/ClSF/Core.hs
@@ -1,6 +1,5 @@
 {-# LANGUAGE Arrows #-}
 {-# LANGUAGE RankNTypes #-}
-{-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TypeFamilies #-}
 
 {- |