diff --git a/debian/templates/koha-sites.conf b/debian/templates/koha-sites.conf
index 8cbd6c1e20..53a1250220 100644
--- a/debian/templates/koha-sites.conf
+++ b/debian/templates/koha-sites.conf
@@ -27,7 +27,7 @@ DEFAULTSQL=""
 # default: 'marc21'
 ZEBRA_MARC_FORMAT="marc21"
 
-# ZEBRA_LANGUAGE: 'cs' | 'en' | 'es' | 'fr' | 'nb' | 'ru' | 'uk'
+# ZEBRA_LANGUAGE: 'cs' | 'en' | 'es' | 'fr' | 'gr' | 'nb' | 'ru' | 'uk'
 # Primary language for Zebra indexing
 # default: 'en'
 ZEBRA_LANGUAGE="en"