diff --git a/byaccj.spec b/byaccj.spec
index 13e0fe7..144dc7c 100644
--- a/byaccj.spec
+++ b/byaccj.spec
@@ -1,42 +1,16 @@
-# Copyright (c) 2000-2005, JPackage Project
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in the
-#    documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name of the JPackage Project nor the names of its
-#    contributors may be used to endorse or promote products derived
-#    from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-
 Summary:	Parser Generator with Java Extension
 Name:		byaccj
-Version:	1.15
-Release:	15%{?dist}
 Epoch:		0
+Version:	1.15
+Release:	16%{?dist}
 License:	Public Domain
 URL:		http://byaccj.sourceforge.net/
+
 Source0:	http://sourceforge.net/projects/byaccj/files/byaccj/1.15/byaccj1.15_src.tar.gz
 
+BuildRequires:  gcc
+BuildRequires:  make
+
 %description
 BYACC/J is an extension of the Berkeley v 1.8 YACC-compatible 
 parser generator. Standard YACC takes a YACC source file, and 
@@ -56,20 +30,21 @@ sed -i -e 's|-arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-versi
 
 %build
 pushd src
-make linux CFLAGS="%{optflags}" LDFLAGS=""
+make yacc CFLAGS="%{optflags}" LDFLAGS=""
 popd
 
 %install
-# jars
-mkdir -p %{buildroot}%{_bindir}
-cp -p src/yacc.linux \
-  %{buildroot}%{_bindir}/%{name}
+install -d -m 755 %{buildroot}%{_bindir}
+install -p -m 755 src/yacc %{buildroot}%{_bindir}/%{name}
 
 %files
 %doc docs/* src/README
-%attr(755, root, root) %{_bindir}/%{name}
+%{_bindir}/%{name}
 
 %changelog
+* Fri Sep 22 2017 Mikolaj Izdebski <mizdebsk@redhat.com> - 0:1.15-16
+- Cleanup spec file
+
 * Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0:1.15-15
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild