diff --git a/_opensearch/install/docker.md b/_opensearch/install/docker.md
index 96146dea..5b2254dc 100644
--- a/_opensearch/install/docker.md
+++ b/_opensearch/install/docker.md
@@ -107,7 +107,7 @@ services:
       - cluster.name=opensearch-cluster
       - node.name=opensearch-node1
       - discovery.seed_hosts=opensearch-node1,opensearch-node2
-      - cluster.initial_master_nodes=opensearch-node1,opensearch-node2
+      - cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2
       - bootstrap.memory_lock=true # along with the memlock settings below, disables swapping
       - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
     ulimits: