diff --git a/64tass.spec b/64tass.spec
index 3941a24..25950ff 100644
--- a/64tass.spec
+++ b/64tass.spec
@@ -1,6 +1,8 @@
+%global debug_package %{nil}
+
 Name:		64tass
 Version:	1.53.1515
-Release:	3%{?dist}
+Release:	4%{?dist}
 Summary:	6502 assembler
 Group:		Development/Languages
 License:	GPLv2+
@@ -15,14 +17,13 @@ processors. It supports the 6502, 65C02, R65C02, W65C02, 65CE02, 65816,
 DTV, and 65EL02, using a syntax similar to that of Omicron TASS and TASM.
 
 %prep
-%setup -q -n %{name}-%{version}-src
+%autosetup -n %{name}-%{version}-src
 rm README  # will be built
 
 %build
-make %{?_smp_mflags} CFLAGS="%{optflags}"
+%make_build
 
 %install
-
 # install binaries
 install -d %{buildroot}%{_bindir}/
 install -m 755 64tass %{buildroot}%{_bindir}/
@@ -35,6 +36,9 @@ install -m 755 64tass %{buildroot}%{_bindir}/
 %doc LICENSE-my_getopt
 
 %changelog
+* Wed Oct 10 2018 Filipe Rosset <rosset.filipe@gmail.com> - 1.53.1515-4
+- spec cleanup and modernization
+
 * Thu Jul 12 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.53.1515-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild