diff --git a/Makefile.PL b/Makefile.PL
index e1e6b98629..3af2486409 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -476,7 +476,7 @@ my %valid_config_values = (
   'AUTH_INDEX_MODE' => { 'grs1' => 1, 'dom' => 1 },
   'BIB_INDEX_MODE'  => { 'grs1' => 1, 'dom' => 1 },
   'ZEBRA_MARC_FORMAT' => { 'marc21' => 1, 'normarc' => 1, 'unimarc' => 1 }, # FIXME should generate from contents of distributation
-  'ZEBRA_LANGUAGE'    => { 'en' => 1, 'es' => 1, 'fr' => 1, 'nb' => 1, 'ru' => 1, 'uk' => 1 }, # FIXME should generate from contents of distribution
+  'ZEBRA_LANGUAGE'    => { 'en' => 1, 'es' => 1, 'fr' => 1, 'gr' => 1, 'nb' => 1, 'ru' => 1, 'uk' => 1 }, # FIXME should generate from contents of distribution
   'ZEBRA_TOKENIZER' => { chr => 1, icu => 1 },
   'RUN_DATABASE_TESTS' => { 'yes' => 1, 'no' => 1 },
   'USE_MEMCACHED'      => { 'yes' => 1, 'no' => 1 },
diff --git a/debian/docs/koha-create.xml b/debian/docs/koha-create.xml
index d3f186b351..4ae1b7c9da 100644
--- a/debian/docs/koha-create.xml
+++ b/debian/docs/koha-create.xml
@@ -26,7 +26,7 @@
       <command>koha-create</command>
       <arg choice="req"><option>--create-db</option>|<option>--request-db</option>|<option>--populate-db</option>|<option>--use-db</option></arg>
       <arg><option>--marcflavor</option> marc21|normarc|unimarc</arg>
-      <arg><option>--zebralang</option> en|es|fr|nb|ru|uk</arg>
+      <arg><option>--zebralang</option> en|es|fr|gr|nb|ru|uk</arg>
       <arg><option>--auth-idx</option> dom|grs1</arg>
       <arg><option>--biblio-idx</option> dom|grs1</arg>
       <arg><option>--use-memcached</option></arg>
diff --git a/debian/scripts/koha-create b/debian/scripts/koha-create
index 19b3d5c660..2ed4e288b3 100755
--- a/debian/scripts/koha-create
+++ b/debian/scripts/koha-create
@@ -52,7 +52,7 @@ Options:
   --marcflavor flavor       Set the MARC flavor. Valid values are marc21 (default),
                             normarc and unimarc.
   --zebralang lang          Choose the primary language for Zebra indexing. Valid
-                            values are en (default), es, fr, nb, ru and uk.
+                            values are en (default), es, fr, gr, nb, ru and uk.
   --auth-idx idx_mode       Set the indexing mode for authority records. Valid
                             values are dom (default) and grs1.
   --biblio-idx idx_mode     Set the indexing mode for bibliographic records.