diff --git a/examples/calculator.js b/examples/calculator.js
index b9f6cca..74a7f4e 100644
--- a/examples/calculator.js
+++ b/examples/calculator.js
@@ -41,7 +41,7 @@ class Calculator {
   }
   
   // Poor variable naming and lacks clarity
-  calc(x, y, z) {
+  calc(x, y, z) { 
     if (z == '+') return this.add(x, y);
     if (z == '-') return this.subtract(x, y);
     if (z == '*') return this.multiply(x, y);
@@ -51,4 +51,4 @@ class Calculator {
   }
 }
 
-module.exports = Calculator;
\ No newline at end of file
+module.exports = Calculator;