diff --git a/libnetfilter_cttimeout.changes b/libnetfilter_cttimeout.changes
index 42d327c..22d264d 100644
--- a/libnetfilter_cttimeout.changes
+++ b/libnetfilter_cttimeout.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Oct 14 00:09:56 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
+
+- Modernize specfile constructs.
+
 -------------------------------------------------------------------
 Mon Dec  8 23:47:22 UTC 2014 - jengelh@inai.de
 
diff --git a/libnetfilter_cttimeout.spec b/libnetfilter_cttimeout.spec
index fb73b67..96c5c2a 100644
--- a/libnetfilter_cttimeout.spec
+++ b/libnetfilter_cttimeout.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libnetfilter_cttimeout
 #
-# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -12,7 +12,7 @@
 # license that conforms to the Open Source Definition (Version 1.9)
 # published by the Open Source Initiative.
 
-# Please submit bugfixes or comments via http://bugs.opensuse.org/
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
 #
 
 
@@ -20,20 +20,18 @@ Name:           libnetfilter_cttimeout
 %define lname	%{name}1
 Version:        1.0.0
 Release:        0
-Url:            http://netfilter.org/projects/libnetfilter_cttimeout/
 Summary:        Userspace library for the Netfilter Conntrack Timeout extension
-License:        GPL-2.0+
+License:        GPL-2.0-or-later
 Group:          Productivity/Networking/Security
+URL:            https://netfilter.org/projects/libnetfilter_cttimeout/
 
 #Git-Clone:	git://git.netfilter.org/libnetfilter_cttimeout
 Source:         ftp://ftp.netfilter.org/pub/libnetfilter_cttimeout/%name-%version.tar.bz2
 Source2:        ftp://ftp.netfilter.org/pub/libnetfilter_cttimeout/%name-%version.tar.bz2.sig
 Source3:        baselibs.conf
 Source4:        %name.keyring
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 #git#BuildRequires:  autoconf, automake >= 1.6, libtool
 BuildRequires:  glibc-devel >= 2.9
-BuildRequires:  pkgconfig >= 0.21
 BuildRequires:  pkgconfig(libmnl) >= 1.0.0
 
 %description
@@ -58,14 +56,15 @@ This library provides the programming interface (API) to the
 Netfilter extended timeout settings infrastructure.
 
 %prep
-%setup -q
+%autosetup -p1
 
 %build
 if [ ! -e configure ]; then
-	autoreconf -fi;
-fi;
+	autoreconf -fi
+fi
+# includedir intentional, cf. bugzilla.opensuse.org/795968
 %configure --disable-static --includedir="%_includedir/%name"
-make %{?_smp_mflags}
+%make_build
 
 %install
 %make_install
@@ -75,11 +74,9 @@ rm -f "%buildroot/%_libdir"/*.la
 %postun -n %lname -p /sbin/ldconfig
 
 %files -n %lname
-%defattr(-,root,root)
 %_libdir/libnetfilter_cttimeout.so.1*
 
 %files devel
-%defattr(-,root,root)
 %_includedir/%name/
 %_libdir/libnetfilter_cttimeout.so
 %_libdir/pkgconfig/libnetfilter_cttimeout.pc