diff --git a/emptyepsilon.spec b/emptyepsilon.spec
index 376027a..929a6eb 100644
--- a/emptyepsilon.spec
+++ b/emptyepsilon.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package emptyepsilon
 #
-# Copyright (c) 2020 SUSE
+# 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
@@ -12,23 +12,25 @@
 # 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/
 #
 
 
 Name:           emptyepsilon
 Version:        2020.08.07
 Release:        0
-Url:            http://daid.github.io/EmptyEpsilon/
 Summary:        Open source spaceship bridge simulator
-License:        GPL-2.0
-Group:          Games
+License:        GPL-2.0-only
+Group:          Amusements/Games/Other
+URL:            https://daid.github.io/EmptyEpsilon/
 Source:         EmptyEpsilon-%{version}.tar.gz
 Source1:        SeriousProton-%{version}.tar.gz
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
-BuildRequires:  cmake gcc gcc-c++ xorg-x11 xorg-x11-devel
+BuildRequires:  cmake
+BuildRequires:  gcc
+BuildRequires:  gcc-c++
 BuildRequires:  sfml2-devel
-BuildArch:      x86_64
+BuildRequires:  xorg-x11
+BuildRequires:  xorg-x11-devel
 
 %description
 EmptyEpsilon places you in the roles of a spaceship's bridge officers, like those seen in Star Trek. While you can play EmptyEpsilon alone or with friends, the best experience involves 6 players working together on each ship.
@@ -42,25 +44,24 @@ sed 's|new Engine();|chdir(RESOURCE_BASE_DIR); new Engine();|' -i EmptyEpsilon-E
 
 %build
 cmake -DSERIOUS_PROTON_DIR="$RPM_SOURCE_DIR/SeriousProton-EE-%{version}" \
- -DCMAKE_INSTALL_PREFIX=/usr \
+ -DCMAKE_INSTALL_PREFIX=%{_prefix} \
  -DCMAKE_BUILD_TYPE=Release \
  -DCPACK_PACKAGE_VERSION_MAJOR="$(echo %{version} | cut -d. -f1)" \
  -DCPACK_PACKAGE_VERSION_MINOR="$(echo %{version} | cut -d. -f2)" \
  -DCPACK_PACKAGE_VERSION_PATCH="$(echo %{version} | cut -d. -f3)" \
  -DOpenGL_GL_PREFERENCE=GLVND \
  $RPM_SOURCE_DIR/EmptyEpsilon-EE-%{version}
-make -j 8
+%make_build -j 8
 
 %install
-make install DESTDIR=$RPM_BUILD_ROOT
-install -Dvm 644 $RPM_SOURCE_DIR/EmptyEpsilon-EE-%{version}/README.md -t "$RPM_BUILD_ROOT/usr/share/doc/emptyepsilon"
-mv -v "$RPM_BUILD_ROOT/usr/script_reference.html" "$RPM_BUILD_ROOT/usr/share/doc/emptyepsilon"
+%make_install
+install -Dvm 644 $RPM_SOURCE_DIR/EmptyEpsilon-EE-%{version}/README.md -t "%{buildroot}%{_datadir}/doc/emptyepsilon"
+mv -v "%{buildroot}%{_prefix}/script_reference.html" "%{buildroot}%{_datadir}/doc/emptyepsilon"
 
 %files
-%defattr(-,root,root,-)
 # You may have to add additional files here (documentation and binaries mostly)
-/usr/bin/EmptyEpsilon
-/usr/share/doc/emptyepsilon/
-/usr/share/emptyepsilon/
+%{_bindir}/EmptyEpsilon
+%{_datadir}/doc/emptyepsilon/
+%{_datadir}/emptyepsilon/
 
 %changelog