diff --git a/src/azure-cli/azure/cli/command_modules/acs/_breaking_change.py b/src/azure-cli/azure/cli/command_modules/acs/_breaking_change.py
index a6f1ed479c9..dd5323105af 100644
--- a/src/azure-cli/azure/cli/command_modules/acs/_breaking_change.py
+++ b/src/azure-cli/azure/cli/command_modules/acs/_breaking_change.py
@@ -1,4 +1,13 @@
 # --------------------------------------------------------------------------------------------
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License. See License.txt in the project root for license information.
-# --------
+# --------------------------------------------------------------------------------------------
+
+from azure.cli.core.breaking_change import register_logic_breaking_change
+
+# Breaking change: change default SSH key handling in `az aks create`
+register_logic_breaking_change(
+    'aks create',
+    summary="Default SSH key behavior will change. When no SSH key parameters are provided, "
+            "the command will behave as if '--no-ssh-key' was passed instead of failing"
+)