diff --git a/fwknop.spec b/fwknop.spec
index e9863a2..db01e43 100644
--- a/fwknop.spec
+++ b/fwknop.spec
@@ -8,7 +8,7 @@ Url: http://www.cipherdyne.org/fwknop/
 Source0: http://cipherdyne.org/fwknop/download/fwknop-%{version}.tar.gz
 Source1: http://cipherdyne.org/fwknop/download/fwknop-%{version}.tar.gz.asc
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
-BuildRequires: libpcap-devel
+BuildRequires: libpcap-devel iptables
 Requires: logrotate
 Requires(post): chkconfig /sbin/ldconfig
 Requires(preun): chkconfig, initscripts, /sbin/ldconfig