diff --git a/tpl/superdesk/activate.sh b/tpl/superdesk/activate.sh
index b005997..47dac20 100644
--- a/tpl/superdesk/activate.sh
+++ b/tpl/superdesk/activate.sh
@@ -43,6 +43,8 @@ _ELASTIC_PORT=${ELASTIC_PORT:-'9201'}
 ELASTICSEARCH_URL="http://$DB_HOST:$_ELASTIC_PORT"
 ELASTICSEARCH_INDEX="$DB_NAME"
 
+PREFERRED_URL_SCHEME="https"
+
 # analytics
 STATISTICS_ELASTIC_URL="$ELASTICSEARCH_URL"
 STATISTICS_ELASTIC_INDEX="${DB_NAME}_statistics"