diff --git a/src/main/scala/lc/core/config.scala b/src/main/scala/lc/core/config.scala
index 3a1ffa0..3dc6f14 100644
--- a/src/main/scala/lc/core/config.scala
+++ b/src/main/scala/lc/core/config.scala
@@ -73,7 +73,7 @@ class Config(configFilePath: String) {
         (AttributesEnum.CAPTCHA_EXPIRY_TIME_LIMIT.toString -> 5) ~
         (AttributesEnum.THROTTLE.toString -> 1000) ~
         (AttributesEnum.THREAD_DELAY.toString -> 2) ~
-        (AttributesEnum.PLAYGROUND_ENABLED.toString -> "true") ~
+        (AttributesEnum.PLAYGROUND_ENABLED.toString -> true) ~
         (AttributesEnum.CORS_HEADER.toString -> "") ~
         (AttributesEnum.MAX_ATTEMPTS.toString -> 10) ~
         ("captchas" -> List(
diff --git a/src/main/scala/lc/core/models.scala b/src/main/scala/lc/core/models.scala
index 5cef675..f31f731 100644
--- a/src/main/scala/lc/core/models.scala
+++ b/src/main/scala/lc/core/models.scala
@@ -37,5 +37,7 @@ case class ConfigField(
   lazy val maxAttemptsInt: Option[Int] = mapInt(maxAttempts)
   lazy val playgroundEnabledBool: Option[Boolean] = playgroundEnabled.map(_ || true)
 
-  private val mapInt = (x: Option[Integer]) => x.map(_ + 0)
+  private def mapInt(x: Option[Integer]): Option[Int] = {
+    x.map(_ + 0)
+  }
 }