diff --git a/iptables.spec b/iptables.spec
index 230ccde..5ffe401 100644
--- a/iptables.spec
+++ b/iptables.spec
@@ -1,4 +1,5 @@
 %define build_devel 1
+%uname $(rpm -q --qf "%{VERSION}-%{RELEASE}\n" kernel)
 
 Name: iptables
 Summary: Tools for managing Linux kernel packet filtering capabilities
@@ -15,7 +16,7 @@ URL: http://www.netfilter.org/
 BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 License: GPLv2
 BuildRequires: libselinux-devel
-BuildRequires: kernel
+BuildRequires: kernel, kernel-devel
 Conflicts: kernel < 2.4.20
 Requires(post): chkconfig
 Requires(preun): chkconfig
@@ -73,6 +74,10 @@ TOPDIR=`pwd`
 OPT="$RPM_OPT_FLAGS -I$TOPDIR/include -fPIC"
 #export KERNEL_DIR=/usr
 #export KBUILD_OUTPUT=/usr
+export KERNEL_DIR="/lib/modules/%{uname}/source"
+export KBUILD_OUTPUT="/lib/modules/%{uname}/build"
+
+
 export DO_SELINUX=1
 make COPT_FLAGS="$OPT" LIBDIR=/%{_lib} 
 make COPT_FLAGS="$OPT" LIBDIR=/%{_lib} iptables-save iptables-restore