diff --git a/azurerm/resource_arm_app_service_plan.go b/azurerm/resource_arm_app_service_plan.go
index 8d2b4b97e8553..3e5be240bbc19 100644
--- a/azurerm/resource_arm_app_service_plan.go
+++ b/azurerm/resource_arm_app_service_plan.go
@@ -59,6 +59,7 @@ func resourceArmAppServicePlan() *schema.Resource {
 			"properties": {
 				Type:     schema.TypeList,
 				Optional: true,
+				Computed: true,
 				MaxItems: 1,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
diff --git a/azurerm/resource_arm_app_service_plan_test.go b/azurerm/resource_arm_app_service_plan_test.go
index b5f349d9066f6..f8cdadf047f20 100644
--- a/azurerm/resource_arm_app_service_plan_test.go
+++ b/azurerm/resource_arm_app_service_plan_test.go
@@ -81,8 +81,9 @@ func TestAccAzureRMAppServicePlan_complete(t *testing.T) {
 				Config: config,
 				Check: resource.ComposeTestCheckFunc(
 					testCheckAzureRMAppServicePlanExists(resourceName),
-					resource.TestCheckResourceAttr(resourceName, "properties.0.maximum_number_of_workers", "3"),
+					resource.TestCheckResourceAttr(resourceName, "properties.0.maximum_number_of_workers", "10"),
 					resource.TestCheckResourceAttr(resourceName, "properties.0.per_site_scaling", "true"),
+					resource.TestCheckResourceAttr(resourceName, "properties.0.reserved", "false"),
 				),
 			},
 		},