diff --git a/install-zammad.sh b/install-zammad.sh
index a29dd8d..ed3c3cc 100644
--- a/install-zammad.sh
+++ b/install-zammad.sh
@@ -15,4 +15,5 @@ contrib/packager.io/fetch_locales.rb
 sed -e 's#.*adapter: postgresql#  adapter: nulldb#g' -e 's#.*username:.*#  username: postgres#g' -e 's#.*password:.*#  password: \n  host: postgresql\n#g' < config/database.yml.pkgr > config/database.yml
 bundle exec rake assets:precompile
 sed -e 's#.*adapter: postgresql#  adapter: postgresql#g' -e 's#.*username:.*#  username: postgres#g' -e 's#.*password:.*#  password: \n  host: postgresql\n#g' < config/database.yml.pkgr > config/database.yml
+rm -r tmp/cache
 chown -R zammad:zammad "${ZAMMAD_DIR}"