diff --git a/pungi-build.conf.j2 b/pungi-build.conf.j2
index 023cc35..19ca64d 100644
--- a/pungi-build.conf.j2
+++ b/pungi-build.conf.j2
@@ -55,7 +55,7 @@ pkgset_koji_module_tag = "dist-c8-module-compose"
 pkgset_allow_reuse = False
 
 
-sigkeys = [{% for sigkey in sigkeys_fingerprints %}"{{ sigkey }}",{% endfor %}]
+sigkeys = [sigkeys_fingerprints | join(', ')]
 
 filter_system_release_packages = False