diff --git a/07_Day/07_day_functions.md b/07_Day/07_day_functions.md
index 51bd24f..671f333 100644
--- a/07_Day/07_day_functions.md
+++ b/07_Day/07_day_functions.md
@@ -366,7 +366,7 @@ console.log(generateFullName('David', 'Smith'))
 ```
 
 ```js
-function calculate_age(birthYear, currentYear = 2019) {
+function calculateAge(birthYear, currentYear = 2019) {
   let age = currentYear - birthYear
   return age
 }