import for older GHCs

HeinrichApfelmus · Jul 12, 2018 · 8f842da · 8f842da
1 parent 7228b37
commit 8f842da
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/Graphics/UI/Threepenny/Core.hs b/src/Graphics/UI/Threepenny/Core.hs
@@ -62,6 +62,7 @@ module Graphics.UI.Threepenny.Core (
 import Control.Monad          (forM_, forM, void)
 import Control.Monad.Fix
 import Control.Monad.IO.Class
+import Data.Foldable          (foldl)
 
 import qualified Control.Monad.Catch             as E
 import qualified Data.Aeson                      as JSON