diff --git a/README.md b/README.md
index 09cbe3ff2..03fae54a8 100644
--- a/README.md
+++ b/README.md
@@ -162,7 +162,7 @@ my-project
 
 When doing this also be sure to set the module name in your code to match the last part of `module-name` (don't include the package path):
 
-```
+```rust
 #[pymodule]
 #[pyo3(name="_lib_name")]
 fn my_lib_name(_py: Python<'_>, m: &PyModule) -> PyResult<()> {