diff --git a/docs/src/developing/on-chain-programs/developing-rust.md b/docs/src/developing/on-chain-programs/developing-rust.md
index b638ff18fcc..5d3035ab95d 100644
--- a/docs/src/developing/on-chain-programs/developing-rust.md
+++ b/docs/src/developing/on-chain-programs/developing-rust.md
@@ -19,7 +19,7 @@ layout](https://doc.rust-lang.org/cargo/guide/project-layout.html):
 But must also include:
 
 ```
-/Xargo.toml
+/Cargo.toml
 ```
 
 Which must contain: