diff --git a/subjects/macro_calculator/README.md b/subjects/macro_calculator/README.md
index 579845ee..96df844a 100644
--- a/subjects/macro_calculator/README.md
+++ b/subjects/macro_calculator/README.md
@@ -60,7 +60,7 @@ fn main(){
         Food {
             name: String::from("big mac"),
             calories: ["2133.84kJ".to_string(), "510kcal".to_string()],
-            protein: 27.0,
+            proteins: 27.0,
             fats: 26.0,
             carbs: 41.0,
             nbr_of_portions: 2.0,
@@ -68,7 +68,7 @@ fn main(){
         Food {
             name: "pizza margherita".to_string(),
             calories: ["1500.59kJ".to_string(), "358.65kcal".to_string()],
-            protein: 13.89,
+            proteins: 13.89,
             fats: 11.21,
             carbs: 49.07,
             nbr_of_portions: 4.9,