-install icons/*.xpm $RPM_BUILD_ROOT%{_pixmapsdir}
-install icons/mini/*.xpm $RPM_BUILD_ROOT%{_pixmapsdir}/mini
-install %{SOURCE1} $RPM_BUILD_ROOT%{_applnkdir}/Scientific/
+install icons/64x64/apps/*.png $RPM_BUILD_ROOT%{_pixmapsdir}
+install icons/64x64/mimetypes/*.png $RPM_BUILD_ROOT%{_pixmapsdir}/hicolor/64x64/mimetypes/
+install icons/32x32/mimetypes/*.png $RPM_BUILD_ROOT%{_pixmapsdir}/hicolor/32x32/mimetypes/
+install mpl2.desktop $RPM_BUILD_ROOT%{_datadir}/mimelnk/application/
+install %{SOURCE1} $RPM_BUILD_ROOT%{_applnkdir}/Scientific/Mathematics