diff --git a/GHC/Err.lhs-boot b/GHC/Err.lhs-boot
deleted file mode 100644
index 1b9467e3..00000000
--- a/GHC/Err.lhs-boot
+++ /dev/null
@@ -1,22 +0,0 @@
-\begin{code}
-{-# LANGUAGE Trustworthy #-}
-{-# LANGUAGE NoImplicitPrelude #-}
-
----------------------------------------------------------------------------
---                  Ghc.Err.hs-boot
----------------------------------------------------------------------------
-
-module GHC.Err ( error, undefined ) where 
-import GHC.Types( Char )
-
--- The type signature for 'error'/'undefined' is a gross hack:
--- we can't give an accurate type for error, because it mentions 
--- an open type variable.
--- Fortunately it doesn't matter what type we give here because the 
--- compiler will use its wired-in version.  But we have
--- to mention 'error' so that it gets exported from this .hi-boot
--- file.
-
-error     :: [Char] -> a
-undefined :: a
-\end{code}