Fix build

This commit is contained in:
Gregor Kleen 2019-04-24 16:49:52 +02:00
parent 816ce0595e
commit dc44804310

View File

@ -16,6 +16,7 @@ import Data.Universe
import qualified Data.Text as Text
import qualified Data.Char as Char
import Data.Map ((!), (!?))
import qualified Data.Map as Map
import Numeric.Natural