diff --git a/README.md b/README.md
index 997ccc8..a614b14 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Smart Home Refactoring C++ Kata
 
 [![CI](https://github.com/Coding-Cuddles/smart-home-refactoring-cpp-kata/actions/workflows/main.yml/badge.svg)](https://github.com/Coding-Cuddles/smart-home-refactoring-cpp-kata/actions/workflows/main.yml)
-[![Replit](https://replit.com/badge?caption=Try%20with%20Replit&variant=small)](https://replit.com/new/github/Coding-Cuddles/smart-home-refactoring-cpp-kata)
+[![Replit](https://img.shields.io/badge/Try%20with%20Replit-black?logo=replit)](https://replit.com/new/github/Coding-Cuddles/smart-home-refactoring-cpp-kata)
 
 ## Overview
 
diff --git a/smart_home.h b/smart_home.h
index 0c66f25..ed93bfd 100644
--- a/smart_home.h
+++ b/smart_home.h
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <iostream>
 #include <string>
 #include <vector>
 
@@ -33,9 +32,9 @@ struct AirConditioner {
     std::string turn_on() { return "AC turned on"; }
     std::string turn_off() { return "AC turned off"; }
 
-    std::string set_temperature(int temperature_in_celcius)
+    std::string set_temperature(int temperature_in_celsius)
     {
-        return "Set temperature to " + std::to_string(temperature_in_celcius);
+        return "Set temperature to " + std::to_string(temperature_in_celsius);
     }
 };