diff --git a/azurerm/resource_arm_storage_account.go b/azurerm/resource_arm_storage_account.go
index 46ae820f59c07..3a4cde72eeb5c 100644
--- a/azurerm/resource_arm_storage_account.go
+++ b/azurerm/resource_arm_storage_account.go
@@ -438,8 +438,8 @@ func resourceArmStorageAccountDelete(d *schema.ResourceData, meta interface{}) e
 func validateArmStorageAccountName(v interface{}, k string) (ws []string, es []error) {
 	input := v.(string)
 
-	if !regexp.MustCompile(`\A([a-z0-9]{3,24})\z`).MatchString(input) {
-		es = append(es, fmt.Errorf("name can only consist of lowercase letters and numbers, and must be between 3 and 24 characters long"))
+	if !regexp.MustCompile(`\A([A-Za-z][A-Za-z0-9]{2,62})\z`).MatchString(input) {
+		es = append(es, fmt.Errorf("name can only consist of lowercase letters and numbers, must be between 3 and 24 characters long and must begin with a letter"))
 	}
 
 	return