diff --git a/build.bash b/build.bash
index e895029..49e1172 100644
--- a/build.bash
+++ b/build.bash
@@ -24,7 +24,9 @@ rpmbuild -bs --clean --define "_topdir `pwd`" --define "_sourcedir `pwd`" javapa
 
 # build RPM with custom mock config
 rm -Rf ${resultdir}/*
-mock -r ../..$PWD/fedora-rawhide-x86_64 SRPMS/*.src.rpm
+mock -r ../..$PWD/fedora-rawhide-x86_64 init
+mock -r ../..$PWD/fedora-rawhide-x86_64 install http://people.redhat.com/msrb/python3-PyXB-1.2.4-0.1.gitc494ba3.fc22.noarch.rpm
+mock -r ../..$PWD/fedora-rawhide-x86_64 --rebuild --no-clean SRPMS/*.src.rpm
 
 # get nosetests results
 mock -r ../..$PWD/fedora-rawhide-x86_64 --copyout /builddir/build/BUILD/javapackages-${version}/test/nosetests.xml .