diff --git a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/reactive/server/WebTestClientContextCustomizerFactory.java b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/reactive/server/WebTestClientContextCustomizerFactory.java
index b8d4216640c7..8582af1bb3e5 100644
--- a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/reactive/server/WebTestClientContextCustomizerFactory.java
+++ b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/reactive/server/WebTestClientContextCustomizerFactory.java
@@ -39,7 +39,7 @@ public ContextCustomizer createContextCustomizer(Class<?> testClass,
 			List<ContextConfigurationAttributes> configAttributes) {
 		SpringBootTest springBootTest = TestContextAnnotationUtils.findMergedAnnotation(testClass,
 				SpringBootTest.class);
-		return (springBootTest != null) ? new WebTestClientContextCustomizer() : null;
+		return (springBootTest != null && isWebClientPresent()) ? new WebTestClientContextCustomizer() : null;
 	}
 
 	private boolean isWebClientPresent() {