diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/integration/KafkaConfigCustomizationTests.java b/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/integration/KafkaConfigCustomizationTests.java
index 1af790b5b..24d3da4c3 100644
--- a/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/integration/KafkaConfigCustomizationTests.java
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/integration/KafkaConfigCustomizationTests.java
@@ -125,7 +125,7 @@ public Foo foo() {
 
 		@Bean
 		BinderCustomizer binderCustomizer() {
-			return (binder,binderName) -> {
+			return (binder, binderName) -> {
 				if (binder instanceof KafkaMessageChannelBinder kafkaMessageChannelBinder) {
 					kafkaMessageChannelBinder.addClientFactoryCustomizer(new ClientFactoryCustomizer() {
 						@Override