diff --git a/test/run_test b/test/run_test
index ac45a1f0..87d7fb68 100755
--- a/test/run_test
+++ b/test/run_test
@@ -29,6 +29,7 @@ run_s2i_enable_ssl_test
 run_upgrade_test
 run_migration_test
 run_pgaudit_test
+run_locales_test
 "
 
 test $# -eq 1 -a "${1-}" == --list && echo "$TEST_LIST" && exit 0
@@ -863,6 +864,54 @@ EOSQL"
   grep -E 'AUDIT: SESSION,.*,.*,READ,SELECT,,,SELECT' "${data_dir}"/userdata/log/postgresql-*.log
 }
 
+function run_locales_test() {
+  local data_dir config_dir name=pg-test-locales-1
+  # create a dir for data
+  create_volume_dir
+  data_dir="${volume_dir}"
+
+  DOCKER_ARGS="-e POSTGRESQL_ADMIN_PASSWORD=Mellon
+               -e POSTGRESQL_LOCALE=en_GB
+               -e POSTGRESQL_ENCODING=ISO885915
+               -v ${data_dir}:/var/lib/pgsql/data:Z" create_container $name
+
+  wait_ready "$name"
+
+  # LATIN9 is a alias for ISO885915
+  docker exec -i $(get_cid "$name") bash -c "psql <<EOSQL
+  SHOW SERVER_ENCODING;
+EOSQL" | grep LATIN9
+
+  docker exec -i $(get_cid "$name") bash -c "psql <<EOSQL
+  SHOW LC_COLLATE;
+EOSQL" | grep -vi LC_COLLA | grep en_GB
+
+  docker stop "$(get_cid "$name")"
+
+  name=pg-test-locales-2
+  # create a dir for data
+  create_volume_dir
+  data_dir="${volume_dir}"
+
+  DOCKER_ARGS="-e POSTGRESQL_ADMIN_PASSWORD=Natoar23ae
+               -e POSTGRESQL_LOCALE=C
+               -e POSTGRESQL_ENCODING=UTF8
+               -v ${data_dir}:/var/lib/pgsql/data:Z" create_container $name
+
+  wait_ready "$name"
+
+  docker exec -i $(get_cid "$name") bash -c "psql <<EOSQL
+  SHOW SERVER_ENCODING;
+EOSQL" | grep UTF8
+
+  docker exec -i $(get_cid "$name") bash -c "psql <<EOSQL
+  SHOW LC_COLLATE;
+EOSQL" | grep -vi LC_COLLA | grep C
+
+  docker stop "$(get_cid "$name")"
+
+}
+
 # configuration defaults
 POSTGRESQL_MAX_CONNECTIONS=100
 POSTGRESQL_MAX_PREPARED_TRANSACTIONS=0