diff --git a/builds/redhat/zeromq.spec.in b/builds/redhat/zeromq.spec.in
index 4a2b29b4..459bf17a 100644
--- a/builds/redhat/zeromq.spec.in
+++ b/builds/redhat/zeromq.spec.in
@@ -8,7 +8,7 @@ URL:           http://www.zeromq.org/
 Source:        http://download.zeromq.org/%{name}-%{version}.tar.gz
 Prefix:        %{_prefix}
 Buildroot:     %{_tmppath}/%{name}-%{version}-%{release}-root
-BuildRequires: gcc, make, gcc-c++, libstdc++-devel
+BuildRequires: gcc, make, gcc-c++, libstdc++-devel, asciidoc, xmlto
 Requires:      libstdc++
 
 if %{?rhel}%{!?rhel:0} >= 6