diff --git a/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/definitions.json b/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/definitions.json
index bae545c58a70..713cd244b6ef 100644
--- a/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/definitions.json
+++ b/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/definitions.json
@@ -721,6 +721,10 @@
           "items": {
             "type": "string"
           }
+        },
+        "rebootSetting": {
+          "description": "Reboot setting for the software update configuration.",
+          "type": "string"
         }
       }
     },
@@ -755,6 +759,10 @@
           "items": {
             "type": "string"
           }
+        },
+        "rebootSetting": {
+          "description": "Reboot setting for the software update configuration.",
+          "type": "string"
         }
       }
     },
@@ -1638,4 +1646,4 @@
       "x-ms-parameter-location": "method"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/examples/softwareUpdateConfiguration/createSoftwareUpdateConfiguration.json b/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/examples/softwareUpdateConfiguration/createSoftwareUpdateConfiguration.json
index a89a27a84ead..ee9eb2935ab1 100755
--- a/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/examples/softwareUpdateConfiguration/createSoftwareUpdateConfiguration.json
+++ b/specification/automation/resource-manager/Microsoft.Automation/preview/2017-05-15-preview/examples/softwareUpdateConfiguration/createSoftwareUpdateConfiguration.json
@@ -15,7 +15,8 @@
                             "168934",
                             "168973"
                         ],
-                        "includedUpdateClassifications": "Critical"
+                        "includedUpdateClassifications": "Critical",
+                        "rebootSetting": "IfRequired"
                     },
                     "azureVirtualMachines": [
                         "/subscriptions/5ae68d89-69a4-454f-b5ce-e443cc4e0067/resourceGroups/myresources/providers/Microsoft.Compute/virtualMachines/vm-01",
@@ -160,4 +161,4 @@
             "message": "\"Software update configuration with the same name already exist.\""
         }
     }
-}
\ No newline at end of file
+}