diff --git a/nebula.spec b/nebula.spec
index 13943f3..8e7cb23 100644
--- a/nebula.spec
+++ b/nebula.spec
@@ -2,12 +2,9 @@ Name:           nebula
 Version:        0.2.3
 Release:        7%{?dist}
 Summary:        Intrusion signature generator
-
-Group:          Applications/System
 License:        GPLv2
-URL:            http://sourceforge.net/projects/%{name}/
+URL:            http://nebula.carnivore.it/
 Source0:        http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  zlib-devel
 
 %description
@@ -24,15 +21,10 @@ from honeypots.
 make %{?_smp_mflags} AM_CFLAGS=-D_GNU_SOURCE
 
 %install
-rm -rf $RPM_BUILD_ROOT
-make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
-
-%clean
-rm -rf $RPM_BUILD_ROOT
+%make_install
 
 %files
-%defattr(-,root,root,-)
-%doc COPYING ChangeLog AUTHORS
+%doc AUTHORS ChangeLog COPYING
 %{_bindir}/nebula
 %{_bindir}/nebulaclient