diff --git a/rubygem-rkerberos.spec b/rubygem-rkerberos.spec
index ed87476..348869d 100644
--- a/rubygem-rkerberos.spec
+++ b/rubygem-rkerberos.spec
@@ -27,6 +27,7 @@ Requires: %{?scl_prefix}ruby
 Requires: %{?scl_prefix}rubygems
 %endif
 
+BuildRequires: gcc
 BuildRequires: %{?scl_prefix}ruby
 BuildRequires: %{?scl_prefix}rubygems
 BuildRequires: %{?scl_prefix}rubygems-devel