diff --git a/tutorial/wasm-game-of-life/src/lib.rs b/tutorial/wasm-game-of-life/src/lib.rs
index 7f20bc7..9ee5376 100644
--- a/tutorial/wasm-game-of-life/src/lib.rs
+++ b/tutorial/wasm-game-of-life/src/lib.rs
@@ -14,6 +14,6 @@ extern {
 }
 
 #[wasm_bindgen]
-pub fn greet() {
-    alert("Hello, {{project-name}}!");
+pub fn greet(s :&str) {
+    alert(&format!("Hello, {}!", s));
 }
diff --git a/tutorial/wasm-game-of-life/www/index.js b/tutorial/wasm-game-of-life/www/index.js
index fb53e78..b52012e 100644
--- a/tutorial/wasm-game-of-life/www/index.js
+++ b/tutorial/wasm-game-of-life/www/index.js
@@ -1,3 +1,3 @@
 import * as wasm from "wasm-game-of-life";
 
-wasm.greet();
+wasm.greet("It's all a game");