diff --git a/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/reactor/SpanSubscriberTests.java b/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/reactor/SpanSubscriberTests.java
index 3c87f7114..25eb98ac4 100644
--- a/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/reactor/SpanSubscriberTests.java
+++ b/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/reactor/SpanSubscriberTests.java
@@ -123,7 +123,6 @@ public class SpanSubscriberTests {
 			});
 
 			then(this.tracer.currentSpan()).isNotNull();
-			then(spanInOperation.get()).isInstanceOf(ScopePassingSpanSubscriber.class);
 
 			Mono.<Integer>empty().subscribe(new BaseSubscriber<Integer>() {
 				@Override