diff --git a/src/Language/Haskell/Generate/PreludeDef.hs b/src/Language/Haskell/Generate/PreludeDef.hs
index e8b40d9..8ca7589 100644
--- a/src/Language/Haskell/Generate/PreludeDef.hs
+++ b/src/Language/Haskell/Generate/PreludeDef.hs
@@ -60,6 +60,7 @@ fmap concat $ mapM declareNamedSymbol
   , ('(++), "append'")
   , ('(!!), "index'")
   , ('(==), "equal'")
+  , ('(/=), "notequal'")
   ]
 
 (<>.) :: ExpG (b -> c) -> ExpG (a -> b) -> ExpG (a -> c)