remove mapstructure from blockstorage,cdn,compute,db pkgs
diff --git a/openstack/compute/v2/extensions/servergroups/requests.go b/openstack/compute/v2/extensions/servergroups/requests.go
index 02e6de2..e3b2493 100644
--- a/openstack/compute/v2/extensions/servergroups/requests.go
+++ b/openstack/compute/v2/extensions/servergroups/requests.go
@@ -10,7 +10,7 @@
 // List returns a Pager that allows you to iterate over a collection of ServerGroups.
 func List(client *gophercloud.ServiceClient) pagination.Pager {
 	return pagination.NewPager(client, listURL(client), func(r pagination.PageResult) pagination.Page {
-		return ServerGroupsPage{pagination.SinglePageBase(r)}
+		return ServerGroupPage{pagination.SinglePageBase(r)}
 	})
 }