diff --git a/gnome-system-monitor.spec b/gnome-system-monitor.spec
index 062ba5f..c9fa8c6 100644
--- a/gnome-system-monitor.spec
+++ b/gnome-system-monitor.spec
@@ -30,6 +30,10 @@ BuildRequires: itstool
 
 BuildRequires: autoconf automake libtool
 
+# for file triggers
+Requires: glib2 >= 2.45.4-2
+
+
 %description
 gnome-system-monitor allows to graphically view and manipulate the running
 processes on your system. It also provides an overview of available resources
@@ -53,14 +57,6 @@ make %{?_smp_mflags}
 desktop-file-validate $RPM_BUILD_ROOT%{_datadir}/applications/gnome-system-monitor.desktop
 desktop-file-validate $RPM_BUILD_ROOT%{_datadir}/applications/gnome-system-monitor-kde.desktop
 
-%postun
-if [ $1 -eq 0 ]; then
-  glib-compile-schemas %{_datadir}/glib-2.0/schemas &>/dev/null || :
-fi
-
-%posttrans
-glib-compile-schemas %{_datadir}/glib-2.0/schemas &>/dev/null || :
-
 %files -f %{name}.lang
 %license COPYING
 %doc AUTHORS NEWS README
@@ -76,6 +72,7 @@ glib-compile-schemas %{_datadir}/glib-2.0/schemas &>/dev/null || :
 %changelog
 * Sat Aug 22 2015 Matthias Clasen <mclasen@redhat.com> - 3.17.90-2
 - Work under Wayland
+- Rely on file triggers
 
 * Mon Aug 17 2015 Kalev Lember <klember@redhat.com> - 3.17.90-1
 - Update to 3.17.90