diff --git a/ghc/lib/std/PrelErr.hi-boot b/ghc/lib/std/PrelErr.hi-boot
index 7871a4105b22bc9f5d12637eeaf69af7323a9962..7f4b628aedb610117db867ea5c725ff2d8d0daa9 100644
--- a/ghc/lib/std/PrelErr.hi-boot
+++ b/ghc/lib/std/PrelErr.hi-boot
@@ -6,6 +6,7 @@
 --	It doesn't need to give "error" a type signature, 
 --	because it's wired into the compiler
 ---------------------------------------------------------------------------
- 
-__interface PrelErr 1 where
-__export PrelErr error parError;
+
+__interface PrelErr 2 0 where
+__export ! PrelErr error parError;
+
diff --git a/ghc/lib/std/PrelException.hi-boot b/ghc/lib/std/PrelException.hi-boot
index 85561ba42abc27ce8a66b3e1b10d46f0eeab62dc..cd7ab02e26f5aa7c3bfc9cb643f76f8ebdd344a6 100644
--- a/ghc/lib/std/PrelException.hi-boot
+++ b/ghc/lib/std/PrelException.hi-boot
@@ -5,7 +5,7 @@
 --	for PrelException.hi.
 ---------------------------------------------------------------------------
  
-__interface PrelException 1 where
+__interface PrelException 1 0 where
 __export ! PrelException ioError catch;
 1 ioError :: __forall [a] => PrelIOBase.IOError -> PrelIOBase.IO a ;
 1 catch :: __forall [a] => PrelIOBase.IO a -> (PrelIOBase.IOError -> PrelIOBase.IO a) -> PrelIOBase.IO a ;