diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-10-02-preview/ManagedEnvironmentsMaintenanceConfigurations.json b/specification/app/resource-manager/Microsoft.App/preview/2024-10-02-preview/ManagedEnvironmentsMaintenanceConfigurations.json
index 700363d16797..c7b821dc0f28 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-10-02-preview/ManagedEnvironmentsMaintenanceConfigurations.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-10-02-preview/ManagedEnvironmentsMaintenanceConfigurations.json
@@ -65,7 +65,7 @@
         }
       }
     },
-    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.App/managedEnvironment/{environmentName}/maintenanceConfigurations/{configName}": {
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.App/managedEnvironments/{environmentName}/maintenanceConfigurations/{configName}": {
       "put": {
         "tags": [
           "MaintenanceConfigurations"
@@ -279,7 +279,8 @@
       },
       "required": [
         "weekDay",
-        "startHourUtc"
+        "startHourUtc",
+        "durationHours"
       ]
     },
     "ScheduledEntries": {