diff --git a/ghc-fgl.spec b/ghc-fgl.spec
index 07bf5b7..e30a6b9 100644
--- a/ghc-fgl.spec
+++ b/ghc-fgl.spec
@@ -24,11 +24,14 @@ Source0:        http://hackage.haskell.org/packages/archive/%{pkg_name}/%{versio
 # fedora ghc archs:
 ExclusiveArch:  %{ix86} x86_64 ppc alpha
 BuildRequires:  ghc, ghc-rpm-macros >= 0.4.0
+BuildRequires:  ghc-mtl-devel
 %if %{with doc}
 BuildRequires:  ghc-doc
+BuildRequires:  ghc-mtl-doc
 %endif
 %if %{with prof}
 BuildRequires:  ghc-prof
+BuildRequires:  ghc-mtl-prof
 %endif
 
 %description
@@ -42,6 +45,7 @@ This package provides the shared library.
 Summary:        %{common_summary} development files
 Group:          Development/Libraries
 %{?ghc_requires}
+Requires:       ghc-mtl-devel
 
 %description devel
 %{common_description}
@@ -54,6 +58,7 @@ This package contains the development files.
 Summary:        Documentation for %{common_summary}
 Group:          Development/Libraries
 %{?ghc_doc_requires}
+Requires:       ghc-mtl-doc
 
 %description doc
 %{common_description}
@@ -67,6 +72,7 @@ This package contains development documentation files.
 Summary:        Profiling libraries for %{common_summary}
 Group:          Development/Libraries
 %{?ghc_prof_requires}
+Requires:       ghc-mtl-prof
 
 %description prof
 %{common_description}
@@ -151,6 +157,7 @@ fi
 - update for ghc-6.12.1: add shared library support
 - use new ghc*_requires macros: needs ghc-rpm-macros 0.4.0
 - add common_summary and common_description
+- buildrequires ghc-mtl
 
 * Wed Aug 12 2009 Bryan O'Sullivan <bos@serpentine.com> - 5.4.2.2-1
 - initial packaging for Fedora created by cabal2spec