diff --git a/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationRedisTests.java b/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationRedisTests.java
index 1b02a30d609..077751d494a 100644
--- a/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationRedisTests.java
+++ b/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationRedisTests.java
@@ -67,7 +67,7 @@ public class SessionAutoConfigurationRedisTests
 
 	private ContextConsumer<AssertableWebApplicationContext> validateSpringSessionUsesRedis(
 			String sessionCreatedChannelPrefix, RedisFlushMode flushMode) {
-		return context -> {
+		return (context) -> {
 			RedisOperationsSessionRepository repository = validateSessionRepository(
 					context, RedisOperationsSessionRepository.class);
 			assertThat(repository.getSessionCreatedChannelPrefix())