struct tag '_' -> '-'
diff --git a/openstack/objectstorage/v1/accounts/results.go b/openstack/objectstorage/v1/accounts/results.go
index 4833a8b..9792243 100644
--- a/openstack/objectstorage/v1/accounts/results.go
+++ b/openstack/objectstorage/v1/accounts/results.go
@@ -17,7 +17,7 @@
 	ContentLength string    `mapstructure:"Content-Length"`
 	ContentType   string    `mapstructure:"Content-Type"`
 	Date          time.Time `mapstructure:"-"`
-	TransID       string    `mapstructure:"X-Trans_ID"`
+	TransID       string    `mapstructure:"X-Trans-ID"`
 }
 
 // Extract will return a struct of headers returned from a call to Get. To obtain