diff --git a/spring-boot-samples/spring-boot-sample-liquibase/src/test/java/sample/liquibase/SampleLiquibaseApplicationTests.java b/spring-boot-samples/spring-boot-sample-liquibase/src/test/java/sample/liquibase/SampleLiquibaseApplicationTests.java
index 9dc68d26c9..37c1772846 100644
--- a/spring-boot-samples/spring-boot-sample-liquibase/src/test/java/sample/liquibase/SampleLiquibaseApplicationTests.java
+++ b/spring-boot-samples/spring-boot-sample-liquibase/src/test/java/sample/liquibase/SampleLiquibaseApplicationTests.java
@@ -33,7 +33,7 @@ public class SampleLiquibaseApplicationTests {
 	@Test
 	public void testDefaultSettings() throws Exception {
 		try {
-			SampleLiquibaseApplication.main(new String[0]);
+			SampleLiquibaseApplication.main(new String[] { "--server.port=0" });
 		}
 		catch (IllegalStateException ex) {
 			if (serverNotRunning(ex)) {