@@ -166,9 +166,9 @@ fetchWith (supportsRev, kind, addArgs) source = do
166166 case length ls of
167167 0 -> return Nothing
168168 1 -> return (Just (DerivationSource { derivKind = kind
169− , derivUrl = (sourceUrl source)
169+ , derivUrl = sourceUrl source
170170 , derivRevision = ""
171− , derivHash = (BS.unpack (head ls))
171+ , derivHash = BS.unpack (head ls)
172172 , derivSubmodule = Nothing
173173 }
174174 , sourceUrl source))