diff --git a/docs/configuration.md b/docs/configuration.md
index 5d731bb57..d7e774595 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -39,6 +39,7 @@ Mandatory Parameters are marked as **Required**.
 | `order_types` | None | Configure order-types depending on the action (`"buy"`, `"sell"`, `"stoploss"`, `"stoploss_on_exchange"`). [More information below](#understand-order_types). [Strategy Override](#parameters-in-strategy).
 | `order_time_in_force` | None | Configure time in force for buy and sell orders. [More information below](#understand-order_time_in_force). [Strategy Override](#parameters-in-strategy).
 | `exchange.name` | bittrex | **Required.** Name of the exchange class to use. [List below](#user-content-what-values-for-exchangename).
+| `exchange.sandbox` | false | Use the 'sandbox' version of the exchange, where the exchange provides a sandbox for risk-free integration. See [here](sandbox-testing.md) in more details.
 | `exchange.key` | key | API key to use for the exchange. Only required when you are in production mode.
 | `exchange.secret` | secret | API secret to use for the exchange. Only required when you are in production mode.
 | `exchange.pair_whitelist` | [] | List of currency to use by the bot. Can be overrided with `--dynamic-whitelist` param.