--- haddock/src/Makefile.orig	Thu Mar 24 15:35:17 2005
+++ haddock/src/Makefile	Thu Mar 24 15:35:46 2005
@@ -7,7 +7,7 @@
 
 # Don't use any hslibs packages in GHC >= 5.04
 ifeq "$(ghc_ge_504)" "YES"
-SRC_HC_OPTS += -package network -fglasgow-exts -cpp
+SRC_HC_OPTS += -package mtl -package network -fglasgow-exts -cpp
 else
 SRC_HC_OPTS += -package data -package text -package util -package net -fglasgow-exts -cpp
 endif
