diff --git a/ghc-HUnit.spec b/ghc-HUnit.spec
index a95bb27..ca057c5 100644
--- a/ghc-HUnit.spec
+++ b/ghc-HUnit.spec
@@ -4,6 +4,9 @@
 
 %bcond_without tests
 
+# no useful debuginfo for Haskell packages without C sources
+%global debug_package %{nil}
+
 Name:           ghc-%{pkg_name}
 # part of haskell-platform
 Version:        1.2.5.2
@@ -18,6 +21,9 @@ BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
 # Begin cabal-rpm deps:
 BuildRequires:  ghc-deepseq-devel
+%if %{with tests}
+BuildRequires:  ghc-filepath-devel
+%endif
 # End cabal-rpm deps
 
 %description