diff --git a/spring-cloud-task-batch/src/test/java/org/springframework/cloud/task/batch/partition/DeployerPartitionHandlerTests.java b/spring-cloud-task-batch/src/test/java/org/springframework/cloud/task/batch/partition/DeployerPartitionHandlerTests.java
index 81f38dd1..7a08764f 100644
--- a/spring-cloud-task-batch/src/test/java/org/springframework/cloud/task/batch/partition/DeployerPartitionHandlerTests.java
+++ b/spring-cloud-task-batch/src/test/java/org/springframework/cloud/task/batch/partition/DeployerPartitionHandlerTests.java
@@ -460,7 +460,7 @@ public class DeployerPartitionHandlerTests {
 
 		validateStepExecutionResults(results);
 
-		assertTrue(endTime.getTime() - startTime.getTime() > 20000);
+		assertTrue("Time difference was too small: " + (endTime.getTime() - startTime.getTime()), endTime.getTime() - startTime.getTime() > 20000);
 	}
 
 	@Test(expected = TimeoutException.class)