diff --git a/README.md b/README.md
index 8fd22c5..6879c20 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ To create an optimised version of the app:
 
 ```bash
 npm run build
-cargo build
+cargo build --release
 ```
 
 ## Built With
@@ -72,4 +72,4 @@ v0.1.4: update packages  because `cargo run` failed
 
 v0.1.3: Added authentication example with private cookies
 
-v0.1.2: Added Bulma CSS styling
\ No newline at end of file
+v0.1.2: Added Bulma CSS styling