diff --git a/azurerm/internal/services/hdinsight/hdinsight_hadoop_cluster_resource.go b/azurerm/internal/services/hdinsight/hdinsight_hadoop_cluster_resource.go
index 21601e484696..965ef9d5cd6b 100644
--- a/azurerm/internal/services/hdinsight/hdinsight_hadoop_cluster_resource.go
+++ b/azurerm/internal/services/hdinsight/hdinsight_hadoop_cluster_resource.go
@@ -40,7 +40,7 @@ var hdInsightHadoopClusterWorkerNodeDefinition = azure.HDInsightNodeDefinition{
 var hdInsightHadoopClusterZookeeperNodeDefinition = azure.HDInsightNodeDefinition{
 	CanSpecifyInstanceCount:  false,
 	MinInstanceCount:         3,
-	MaxInstanceCount:         utils.Int(2),
+	MaxInstanceCount:         utils.Int(3),
 	CanSpecifyDisks:          false,
 	FixedMinInstanceCount:    utils.Int32(int32(1)),
 	FixedTargetInstanceCount: utils.Int32(int32(3)),