diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/PropertyMapperTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/PropertyMapperTests.java
index dec021e5049..3651bbe0a5d 100644
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/PropertyMapperTests.java
+++ b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/PropertyMapperTests.java
@@ -283,7 +283,7 @@ class PropertyMapperTests {
 			this.age = age;
 		}
 
-		public Immutable withAge(Integer age) {
+		Immutable withAge(Integer age) {
 			return new Immutable(this.name, age);
 		}