diff --git a/Spring/WeatherForecastService.java b/Spring/WeatherForecastService.java
index b50de6a..ff83a1e 100644
--- a/Spring/WeatherForecastService.java
+++ b/Spring/WeatherForecastService.java
@@ -22,7 +22,7 @@ class Config {
     @Bean
     public TemperatureMeasurementCallback callback() {
         System.out.println("Registering TemperatureMeasurementCallback bean");
-        return (temperature) -> System.out.println(temperature);
+        return temperature -> System.out.println(temperature);
     }
 }