use 'MaybeXXXX' functions in gophercloud package
diff --git a/openstack/blockstorage/v1/snapshots/requests.go b/openstack/blockstorage/v1/snapshots/requests.go
index fad5adf..40b44d8 100644
--- a/openstack/blockstorage/v1/snapshots/requests.go
+++ b/openstack/blockstorage/v1/snapshots/requests.go
@@ -2,7 +2,6 @@
 
 import (
 	"github.com/rackspace/gophercloud"
-	"github.com/rackspace/gophercloud/openstack/utils"
 	"github.com/rackspace/gophercloud/pagination"
 
 	"github.com/racker/perigee"
@@ -39,9 +38,9 @@
 		Snapshot: snapshot{},
 	}
 
-	reqBody.Snapshot.Description = utils.MaybeString(opts.Description)
-	reqBody.Snapshot.Name = utils.MaybeString(opts.Name)
-	reqBody.Snapshot.VolumeID = utils.MaybeString(opts.VolumeID)
+	reqBody.Snapshot.Description = gophercloud.MaybeString(opts.Description)
+	reqBody.Snapshot.Name = gophercloud.MaybeString(opts.Name)
+	reqBody.Snapshot.VolumeID = gophercloud.MaybeString(opts.VolumeID)
 
 	reqBody.Snapshot.Force = opts.Force