diff --git a/icedtea-web.spec b/icedtea-web.spec
index f0d2c9f..c3790b4 100644
--- a/icedtea-web.spec
+++ b/icedtea-web.spec
@@ -21,7 +21,7 @@
 
 Name:		icedtea-web
 Version:	2.0.0
-Release:	pre.0.3.alpha13.patched1%{?dist}.2
+Release:	pre.0.3.alpha13.patched1%{?dist}.3
 Summary:	Additional Java components for OpenJDK - Java Web Start implementation
 
 License:    LGPLv2+ and GPLv2 with exceptions
@@ -198,9 +198,15 @@ cp pom.xml  $RPM_BUILD_ROOT/%{_mavenpomdir}/%{name}.pom
 %find_lang %{name} --all-name --with-man
 
 %check
-appstream-util validate $RPM_BUILD_ROOT/%{_datadir}/appdata/*.xml || :
+# takes long, and fails anyway
+# appstream-util validate $RPM_BUILD_ROOT/%{_datadir}/appdata/*.xml || :
 
 %post
+# we had changed master of alternative, thus rmoving the old ones
+# this is braking alternatives, thus variabled-out if necessary
+if [ ! "x$ITW_20_18" ==  "xtrue" ] ; then
+  alternatives --remove javaws.%{_arch} %{_prefix}/bin/javaws.itweb
+fi
 alternatives \
   --install %{_bindir}/javaws				javaws.%{_arch}		%{_libexecdir}/%{name}/javaws %{priority}  --family %{preffered_jre}.%{_arch} \
   --slave   %{_bindir}/itweb-settings			itweb-settings		%{_libexecdir}/%{name}/itweb-settings \
@@ -244,6 +250,9 @@ exit 0
 
 
 %changelog
+* Fri Jul 10 2020 Jiri Vanek <jvanek@redhat.com> - 2.0.0-pre.0.3.alpha13.patched1.3
+- added removal of old alternatives. Sorry
+
 * Fri Jul 10 2020 Jiri Vanek <jvanek@redhat.com> - 2.0.0-pre.0.3.alpha13.patched1.2
 - fixed removal of alternatives, was not working for years
 - fixed unexpanded macro in alternatives, reason of non working update from 1.8