diff --git a/redhat/main/tdebindings/tdebindings-14.0.0.spec b/redhat/main/tdebindings/tdebindings-14.0.0.spec
index e0e7fcdc4..d8c8d2b97 100644
--- a/redhat/main/tdebindings/tdebindings-14.0.0.spec
+++ b/redhat/main/tdebindings/tdebindings-14.0.0.spec
@@ -189,6 +189,9 @@ BuildRequires:	rubypick
 %endif
 %endif
 %endif
+%if 0%{?rhel} == 5
+%define ruby_arch %(ruby -rrbconfig -e 'puts Config::CONFIG["archdir"]')
+%endif
 
 %if "%{?ruby_libdir}" != ""
 %define ruby_rubylibdir %{?ruby_libdir}