diff --git a/docs/developing/sandbox.md b/docs/developing/sandbox.md
index 9ab32020e..3b2a9eb2c 100644
--- a/docs/developing/sandbox.md
+++ b/docs/developing/sandbox.md
@@ -49,7 +49,7 @@ Tezbox provides sample accounts in the `/tezbox/context/accounts.json` file.
 
 ## Flextesa
 
-The [Flextesa](https://tezos.gitlab.io/flextesa/) is a simulated Tezos environment that runs in a container.
+The [Flextesa](https://tezos.gitlab.io/flextesa/) is also a simulated Tezos environment that runs in a container.
 
 The Flextesa image has different scripts that start different versions of the Tezos protocol.
 For example, to start a Flextesa sandbox with the Oxford protocol, run this command: