diff --git a/rubygem-rspec-support.spec b/rubygem-rspec-support.spec
index b02fe9c..18eb14d 100644
--- a/rubygem-rspec-support.spec
+++ b/rubygem-rspec-support.spec
@@ -28,6 +28,7 @@ BuildRequires:	rubygems-devel
 %if 0%{?need_bootstrap_set} < 1
 BuildRequires:	rubygem(rspec)
 BuildRequires:	rubygem(thread_order)
+BuildRequires:	rubygem(bigdecimal)
 BuildRequires:	git
 %endif