diff --git a/kong/content.md b/kong/content.md
index 4981db721..3eb9dd27a 100644
--- a/kong/content.md
+++ b/kong/content.md
@@ -61,6 +61,7 @@ Once the database has been started and prepared, we can start a Kong container a
 $ docker run -d --name kong \
     --link kong-database:kong-database \
     -e "KONG_DATABASE=postgres" \
+    -e "KONG_PG_HOST=kong-database" \
     -e "KONG_CASSANDRA_CONTACT_POINTS=kong-database" \
     -e "KONG_PROXY_ACCESS_LOG=/dev/stdout" \
     -e "KONG_ADMIN_ACCESS_LOG=/dev/stdout" \