         if let expanded = cstring {
             return expanded
         } else {
-            throw Error.Unreadable
+            throw Error.unreadable
         }
     }
 

        case GLOB_NOMATCH:
            return [ ]
        case GLOB_ABORTED:
            throw Error.Unreadable
        default:
            break
        }

        let maybeResult = realpath(path, nil)

        guard let result = maybeResult else {
            throw Error.unreadable
        }

        defer { free(result) }
