diff --git a/rubygem-metaclass.spec b/rubygem-metaclass.spec
index 29b9583..1f547a5 100644
--- a/rubygem-metaclass.spec
+++ b/rubygem-metaclass.spec
@@ -18,6 +18,7 @@ Requires: ruby
 BuildRequires: ruby(abi) = %{rubyabi}
 BuildRequires: rubygems-devel
 BuildRequires: ruby
+BuildRequires: rubygem(minitest)
 BuildArch: noarch
 Provides: rubygem(%{gem_name}) = %{version}