diff --git a/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/job/persistence/MockClientBuilder.java b/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/job/persistence/MockClientBuilder.java
index 35404eb6f7f..622fb36c945 100644
--- a/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/job/persistence/MockClientBuilder.java
+++ b/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/job/persistence/MockClientBuilder.java
@@ -392,7 +392,8 @@ public class MockClientBuilder {
         doAnswer(new Answer<Void>() {
             @Override
             public Void answer(InvocationOnMock invocationOnMock) throws Throwable {
-                ActionListener<IndicesAliasesResponse> listener = (ActionListener<IndicesAliasesResponse>) invocationOnMock.getArguments()[0];
+                ActionListener<IndicesAliasesResponse> listener =
+                        (ActionListener<IndicesAliasesResponse>) invocationOnMock.getArguments()[0];
                 listener.onResponse(mock(IndicesAliasesResponse.class));
                 return null;
             }