diff --git a/src/azure-cli/azure/cli/command_modules/acs/_help.py b/src/azure-cli/azure/cli/command_modules/acs/_help.py
index fa1bfcd903b..949d6950427 100644
--- a/src/azure-cli/azure/cli/command_modules/acs/_help.py
+++ b/src/azure-cli/azure/cli/command_modules/acs/_help.py
@@ -673,6 +673,9 @@
   - name: --rotation-poll-interval
     type: string
     short-summary: Set interval of rotation poll. Use with azure-keyvault-secrets-provider addon.
+  - name: --ssh-key-value
+    type: string
+    short-summary: Public key path or key contents to install on node VMs for SSH access. For example, 'ssh-rsa AAAAB...snip...UcyupgH azureuser@linuxvm'.
   - name: --enable-windows-gmsa
     type: bool
     short-summary: Enable Windows gmsa on cluster.
@@ -803,6 +806,8 @@
     text: az aks update -g MyResourceGroup -n MyManagedCluster --enable-keda
   - name: Disable KEDA workload autoscaler for an existing kubernetes cluster.
     text: az aks update -g MyResourceGroup -n MyManagedCluster --disable-keda
+  - name: Update the SSH key on a AKS Cluster.
+    text: az aks update -g MyResourceGroup -n MyManagedCluster --ssh-key-value /path/to/publickey
 """
 
 helps['aks delete'] = """