diff --git a/docs/build/networks-faucets/local-network.mdx b/docs/build/networks-faucets/local-network.mdx
index 340e80d3b..7a34ebbe6 100644
--- a/docs/build/networks-faucets/local-network.mdx
+++ b/docs/build/networks-faucets/local-network.mdx
@@ -71,7 +71,7 @@ Setup your node to use the secret you just generated as its public key and staki
     ```
 
 - You also have to modify the file `massa-client/base_config/config.toml` to match the same ChainID as a Sandbox node, as it defaults to the Mainnet ChainID of 77658377.
-    ```javascript
+    ```toml
     ...
     chain_id = 77
     ...