diff --git a/ace.spec b/ace.spec
index 7624a4c..aa9a8f1 100644
--- a/ace.spec
+++ b/ace.spec
@@ -20,6 +20,7 @@ URL: 				http://www.thincrust.net
 Source0: 			%{url}/download/%{name}-%{version}.tar.gz
 BuildRoot: 			%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildArch: 			noarch
+BuildRequires:			ruby(abi) = 1.8
 Requires: 			yum
 Requires:			ruby(abi) = 1.8
 Requires: 			puppet