diff --git a/index.js b/index.js
index 843c2f7..b31d689 100644
--- a/index.js
+++ b/index.js
@@ -13,7 +13,7 @@ try {
     console.log(`uppercase: ${uppercase}`);
     core.setOutput("uppercase", uppercase);
 
-    const capitalized = inputStr.charAt(0).toUpperCase() + inputStr.slice(1);
+    const capitalized = inputStr.charAt(0).toUpperCase() + inputStr.slice(1).toLowerCase();
     console.log(`capitalized: ${capitalized}`);
     core.setOutput("capitalized", capitalized);
 } catch (error) {