diff --git a/docs/tutorials/write-a-contract.mdx b/docs/tutorials/write-a-contract.mdx
index 03d92d88..9629b3fc 100644
--- a/docs/tutorials/write-a-contract.mdx
+++ b/docs/tutorials/write-a-contract.mdx
@@ -51,7 +51,7 @@ only if a feature is enabled, with `export_if = "[feature-name]"`.
 
 Putting those pieces together a simple contract will look like this.
 
-```rust
+```rust title="src/lib.rs"
 #![no_std]
 use soroban_sdk::{contractimpl, vec, Env, Symbol, Vec};