diff --git a/gpp.changes b/gpp.changes
index 744f3c6..3a214ac 100644
--- a/gpp.changes
+++ b/gpp.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Sep  3 08:49:31 UTC 2017 - mpluskal@suse.com
+
+- Cleanup spec file with spec-cleaner
+
 -------------------------------------------------------------------
 Sat Sep  2 20:51:50 UTC 2017 - psychonaut@nothingisreal.com
 
diff --git a/gpp.spec b/gpp.spec
index 656d725..e56b199 100644
--- a/gpp.spec
+++ b/gpp.spec
@@ -1,6 +1,7 @@
 #
 # spec file for package gpp
 #
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 # Copyright (c) 2017 Tristan Miller <psychonaut@nothingisreal.com>
 #
 # All modifications and additions to the file contributed by third parties
@@ -15,39 +16,38 @@
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
-Summary: Generic Preprocessor
-Name: gpp
-Version: 2.25
-Release: 0
-License: LGPL-3.0+
-Group: Development/Tools/Other
-URL: https://logological.org/gpp/
-Source0: https://files.nothingisreal.com/%{name}/%{name}-%{version}.tar.bz2
-BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
-BuildRequires: gcc
 
-%description 
-GPP is a general-purpose preprocessor with customizable syntax,
-suitable for a wide range of preprocessing tasks. Its independence
-from any one programming language makes it much more versatile than
-the C preprocessor (cpp), while its syntax is lighter and more
-flexible than that of GNU m4. There are built-in macros for use with
-C/C++, LaTeX, HTML, XHTML, and Prolog files.
+Name:           gpp
+Version:        2.25
+Release:        0
+Summary:        Generic Preprocessor
+License:        LGPL-3.0+
+Group:          Development/Tools/Other
+Url:            https://logological.org/gpp/
+Source0:        https://files.nothingisreal.com/%{name}/%{name}-%{version}.tar.bz2
+
+%description
+GPP is a general-purpose preprocessor with customizable syntax, suitable
+for a wide range of preprocessing tasks. Its independence from any one
+programming language makes it much more versatile than the C preprocessor
+(cpp), while its syntax is lighter and more flexible than that of GNU m4.
+There are built-in macros for use with C/C++, LaTeX, HTML, XHTML, and
+Prolog files.
 
 %prep
 %setup -q
 
 %build
-%{_configure} --prefix=%{_prefix} --docdir=%{_docdir}/%{name}
+%configure \
+  --docdir=%{_docdir}/%{name}
 make %{?_smp_mflags}
 
 %install
 %make_install
 
 %files
-%defattr(-,root,root,-)
 %{_bindir}/gpp
 %{_docdir}/%{name}
-%{_mandir}/man1/gpp.1.gz
+%{_mandir}/man1/gpp.1%{ext_man}
 
 %changelog