diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-05-05-preview/AlertsManagement.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-05-05-preview/AlertsManagement.json
index 84709a47634e..e7d3789cd915 100644
--- a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-05-05-preview/AlertsManagement.json
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-05-05-preview/AlertsManagement.json
@@ -5,6 +5,7 @@
     "title": "Azure Alerts Management Service Resource Provider",
     "description": "REST APIs for Azure Alerts Management Service."
   },
+  "host": "management.azure.com",
   "schemes": [
     "https"
   ],
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-11-02-privatepreview/AlertsManagement.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-11-02-privatepreview/AlertsManagement.json
index 6446c5077847..35ada4060c36 100644
--- a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-11-02-privatepreview/AlertsManagement.json
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2018-11-02-privatepreview/AlertsManagement.json
@@ -5,6 +5,7 @@
     "title": "Azure Alerts Management Service Resource Provider",
     "description": "REST APIs for Azure Alerts Management Service."
   },
+  "host": "management.azure.com",
   "schemes": [
     "https"
   ],
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2019-03-01-preview/AlertsManagement.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2019-03-01-preview/AlertsManagement.json
index 18b47c5a030a..1ba878f7c998 100644
--- a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2019-03-01-preview/AlertsManagement.json
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2019-03-01-preview/AlertsManagement.json
@@ -5,6 +5,7 @@
     "title": "Azure Alerts Management Service Resource Provider",
     "description": "Azure Alerts Management Service provides a single pane of glass of alerts across Azure Monitor."
   },
+  "host": "management.azure.com",
   "schemes": [
     "https"
   ],
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/AlertsManagement.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/AlertsManagement.json
index 11257261b16a..24f44e894e1d 100644
--- a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/AlertsManagement.json
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/AlertsManagement.json
@@ -5,6 +5,7 @@
     "title": "Azure Alerts Management Service Resource Provider",
     "description": "Azure Alerts Management Service provides a single pane of glass of alerts across Azure Monitor."
   },
+  "host": "management.azure.com",
   "schemes": [
     "https"
   ],