diff --git a/fedora.conf b/fedora.conf
index b28770c..6b2dbb0 100644
--- a/fedora.conf
+++ b/fedora.conf
@@ -83,6 +83,7 @@ repoclosure_backend = 'dnf'
 createrepo_deltas = False
 createrepo_database = True
 createrepo_use_xz = True
+createrepo_extra_args = ['--zck', '--zck-dict-dir=/usr/share/fedora-repo-zdicts/rawhide']
 
 # CHECKSUMS
 media_checksums = ['sha256']