diff --git a/.gitignore b/.gitignore
index c9b456f..60a6772 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,4 @@
 /release-3.3.16.tar.gz
 /release-4.0.1.tar.gz
 /release-4.0.3.tar.gz
+/release-4.0.4.tar.gz
diff --git a/qbittorrent.spec b/qbittorrent.spec
index 99f4ff5..028e367 100644
--- a/qbittorrent.spec
+++ b/qbittorrent.spec
@@ -5,8 +5,8 @@
 
 Name:    qbittorrent
 Summary: A Bittorrent Client
-Version: 4.0.3
-Release: 3%{?dist}
+Version: 4.0.4
+Release: 1%{?dist}
 Epoch:   1
 License: GPLv2+
 URL:     http://www.qbittorrent.org
@@ -35,6 +35,7 @@ BuildRequires: qtsinglecoreapplication-qt5-devel
 BuildRequires: rb_libtorrent-devel >= 1.1.4
 BuildRequires: desktop-file-utils
 BuildRequires: boost-devel >= 1.60
+BuildRequires: libappstream-glib
 Requires: python3
 
 %description
@@ -84,7 +85,7 @@ cd build-nox
              --disable-gui \
              --with-qtsingleapplication=system
 cp conf.pri ..
-make %{?_smp_mflags}
+%make_build
 mv -f ../conf.pri ../conf.pri.nox
 # configure and make gui version
 cd ..
@@ -96,7 +97,7 @@ cd build-gui
              --disable-silent-rules \
              --with-qtsingleapplication=system
 cp conf.pri ..
-make %{?_smp_mflags}
+%make_build
 mv -f ../conf.pri ../conf.pri.gui
 
 %install
@@ -115,8 +116,11 @@ install -pm 0755 %{SOURCE2} %{buildroot}%{_bindir}/qbittorrent-nox
 
 
 desktop-file-install \
-                     --dir=%{buildroot}%{_datadir}/applications/ \
-                           %{buildroot}%{_datadir}/applications/qbittorrent.desktop
+  --dir=%{buildroot}%{_datadir}/applications/ \
+  %{buildroot}%{_datadir}/applications/qbittorrent.desktop
+
+appstream-util validate-relax --nonet %{buildroot}%{_datadir}/appdata/qbittorrent.appdata.xml
+
 
 %files
 %{!?_licensedir:%global license %doc}
@@ -140,6 +144,9 @@ desktop-file-install \
 %{_mandir}/man1/qbittorrent-nox.1*
 
 %changelog
+* Thu Feb 22 2018 Leigh Scott <leigh123linux@googlemail.com> - 1:4.0.4-1
+- Update to 4.0.4
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1:4.0.3-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
 
diff --git a/sources b/sources
index d872775..72eb25f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (release-4.0.3.tar.gz) = e4a140f06fcdb5ffc96da7a63b5da31fdcb04294d069decd23969b83fc96c028247e21757057654ed30b25482541d0382554f525122f2bcbe591a8744ac88904
+SHA512 (release-4.0.4.tar.gz) = 61c3a9ce51a48f08c11e1a2c68f3ad0a718fa8ef172e4859be0b3533b0f20f6b6500f8b5106e681152206b2765e7968bd9fa794516d7f5a1e02ab7da4517c06b