diff --git a/builtin/providers/azurerm/resource_arm_virtual_machine_scale_set.go b/builtin/providers/azurerm/resource_arm_virtual_machine_scale_set.go
index 73b89500dbac..2b79b80bcb29 100644
--- a/builtin/providers/azurerm/resource_arm_virtual_machine_scale_set.go
+++ b/builtin/providers/azurerm/resource_arm_virtual_machine_scale_set.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"log"
 	"net/http"
-
 	"strings"
 
 	"github.com/Azure/azure-sdk-for-go/arm/compute"
@@ -53,9 +52,9 @@ func resourceArmVirtualMachineScaleSet() *schema.Resource {
 						},
 
 						"tier": {
-							Type:     schema.TypeString,
-							Optional: true,
-							// Computed:         true,
+							Type:             schema.TypeString,
+							Optional:         true,
+							Computed:         true,
 							DiffSuppressFunc: ignoreCaseDiffSuppressFunc,
 						},
 
@@ -775,7 +774,7 @@ func flattenAzureRmVirtualMachineScaleSetSku(sku *compute.Sku) []interface{} {
 	result["capacity"] = *sku.Capacity
 
 	if *sku.Tier != "" {
-		result["tier"] = strings.ToLower(*sku.Tier)
+		result["tier"] = *sku.Tier
 	}
 
 	log.Printf("[DEBUG] agaiha sku values, Name:(%s), Capacity:(%d), Tier:(%s)", *sku.Name, *sku.Capacity, *sku.Tier)
@@ -832,7 +831,7 @@ func resourceArmVirtualMachineScaleSetSkuHash(v interface{}) int {
 	m := v.(map[string]interface{})
 	buf.WriteString(fmt.Sprintf("%s-", m["name"].(string)))
 	if m["tier"] != nil {
-		buf.WriteString(fmt.Sprintf("%s-", m["tier"].(string)))
+		buf.WriteString(fmt.Sprintf("%s-", strings.ToLower(m["tier"].(string))))
 	}
 	buf.WriteString(fmt.Sprintf("%d-", m["capacity"].(int)))