diff --git a/tmpl/99-additional_repositories b/tmpl/99-additional_repositories
new file mode 100644
index 0000000..05fe0ca
--- /dev/null
+++ b/tmpl/99-additional_repositories
@@ -0,0 +1,15 @@
+%import re
+%def repository_identification(%%repository)
+
+%set %%repository_re = re.compile(r'^((deb)|(deb-src)) (\[ .* \] )?(((http)|(https)|(ftp)|(ftps))://(?P<url>\S+)) (?P<suite>(\S+))(?P<components>(( \S+)+)?)')
+%set %%elements = %%repository_re.match(%%repository).groupdict()
+%return 'o={},a={},c={}'.format(%%elements['url'].split('/')[0], %%elements['suite'], %%elements['components'].strip())
+  %return %%repository
+%end def
+
+%for %%repository in %%getVar('additional_repository_name', [])
+Package: *
+Pin: release %%repository_identification(%%repository.additional_repository_source)
+Pin-Priority: %%additional_repository_global_priority
+
+%end for