diff --git a/spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/RoutingFunctionTests.java b/spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/RoutingFunctionTests.java
index efe47e310..0f87cabca 100644
--- a/spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/RoutingFunctionTests.java
+++ b/spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/RoutingFunctionTests.java
@@ -82,7 +82,7 @@ public class RoutingFunctionTests {
 		assertThat(function).isNotNull();
 		try {
 			function.apply(message);
-			fail();
+			fail("Should not be here");
 		}
 		catch (Exception e) {
 			// Good