diff --git a/plugin/monitoring/src/test/java/org/elasticsearch/xpack/monitoring/collector/cluster/ClusterStatsMonitoringDocTests.java b/plugin/monitoring/src/test/java/org/elasticsearch/xpack/monitoring/collector/cluster/ClusterStatsMonitoringDocTests.java
index 06a2a624d5e..f7e86948583 100644
--- a/plugin/monitoring/src/test/java/org/elasticsearch/xpack/monitoring/collector/cluster/ClusterStatsMonitoringDocTests.java
+++ b/plugin/monitoring/src/test/java/org/elasticsearch/xpack/monitoring/collector/cluster/ClusterStatsMonitoringDocTests.java
@@ -221,6 +221,7 @@ public class ClusterStatsMonitoringDocTests extends BaseMonitoringDocTestCase<Cl
     }
 
     @Override
+    @AwaitsFix(bugUrl = "https://github.com/elastic/x-pack-elasticsearch/issues/4100")
     public void testToXContent() throws IOException {
         final ClusterName clusterName = new ClusterName("_cluster_name");
         final TransportAddress transportAddress = new TransportAddress(TransportAddress.META_ADDRESS, 9300);