diff --git a/ghc-QuickCheck.spec b/ghc-QuickCheck.spec
index 363e0a2..be5053e 100644
--- a/ghc-QuickCheck.spec
+++ b/ghc-QuickCheck.spec
@@ -37,6 +37,13 @@ BuildRequires:  ghc-process-devel
 %endif
 # for missing dep 'splitmix':
 BuildRequires:  ghc-time-prof
+%if %{with tests}
+BuildRequires:  ghc-HUnit-devel
+BuildRequires:  ghc-async-devel
+BuildRequires:  ghc-base-compat-batteries-devel
+BuildRequires:  ghc-tf-random-devel
+BuildRequires:  ghc-vector-devel
+%endif
 # End cabal-rpm deps
 
 %description