diff --git a/training/src/main/java/info/jab/fp/sealed/AgeProblemExample.java b/training/src/main/java/info/jab/fp/sealed/AgeProblemExample.java
index 75fb2eb..0266109 100644
--- a/training/src/main/java/info/jab/fp/sealed/AgeProblemExample.java
+++ b/training/src/main/java/info/jab/fp/sealed/AgeProblemExample.java
@@ -29,7 +29,7 @@ public String getMessage() {
     //Either<AgeProblem, Age> problem2 = Either.left(new NotLegalAdult());
     //Either<AgeProblem, Age> success = Either.right(new Age(20));
 
-    public Either<AgeProblem, Age> validAdultAge(Integer age) {
+    public Either<AgeProblem, Age> validateAge(Integer age) {
         return switch (age) {
             case Integer a when a < 0 -> Either.left(new InvalidAge());
             case Integer a when a < 18 -> Either.left(new NotLegalAdult());
diff --git a/training/src/test/java/info/jab/fp/sealed/AgeProblemExampleTest.java b/training/src/test/java/info/jab/fp/sealed/AgeProblemExampleTest.java
index e9fe9e9..03b0e61 100644
--- a/training/src/test/java/info/jab/fp/sealed/AgeProblemExampleTest.java
+++ b/training/src/test/java/info/jab/fp/sealed/AgeProblemExampleTest.java
@@ -18,12 +18,12 @@ public void should_notValidate() {
 
         AgeProblemExample example = new AgeProblemExample();
 
-        var result = example.validAdultAge(-1);
+        var result = example.validateAge(-1);
 
         assertThat(result).isInstanceOf(Either.class);
         assertThat(result.isLeft()).isTrue();
 
-        var result2 = example.validAdultAge(17);
+        var result2 = example.validateAge(17);
         assertThat(result2).isInstanceOf(Either.class);
         assertThat(result2.isLeft()).isTrue();
 
@@ -45,7 +45,7 @@ public void should_validate() {
 
         AgeProblemExample example = new AgeProblemExample();
 
-        var result = example.validAdultAge(18);
+        var result = example.validateAge(18);
 
         assertThat(result).isInstanceOf(Either.class);
         assertThat(result.isRight()).isTrue();