diff --git a/src/lib.rs b/src/lib.rs
index a6d94f61..5b74132d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,7 +18,7 @@
 //! let code = v8::String::new(scope, "'Hello' + ' World!'").unwrap();
 //! println!("javascript code: {}", code.to_rust_string_lossy(scope));
 //!
-//! let mut script = v8::Script::compile(scope, code, None).unwrap();
+//! let script = v8::Script::compile(scope, code, None).unwrap();
 //! let result = script.run(scope).unwrap();
 //! let result = result.to_string(scope).unwrap();
 //! println!("result: {}", result.to_rust_string_lossy(scope));