diff --git a/compiler/utils/MonadUtils.hs b/compiler/utils/MonadUtils.hs
index 936ae6275162776c595db76c95c7e5c536992544..72669b93629ca1a4312dd6fb69ece024bedcca9c 100644
--- a/compiler/utils/MonadUtils.hs
+++ b/compiler/utils/MonadUtils.hs
@@ -32,7 +32,7 @@ import Control.Applicative
 import Control.Monad
 import Control.Monad.Fix
 import Control.Monad.IO.Class
-import Data.Foldable (sequenceA_, foldr)
+import Data.Foldable (sequenceA_, foldlM, foldrM)
 import Data.List (unzip4, unzip5, zipWith4)
 
 -------------------------------------------------------------------------------
@@ -190,18 +190,10 @@ allM f (b:bs) = (f b) >>= (\bv -> if bv then allM f bs else return False)
 orM :: Monad m => m Bool -> m Bool -> m Bool
 orM m1 m2 = m1 >>= \x -> if x then return True else m2
 
--- | Monadic version of foldl
-foldlM :: (Monad m, Foldable t) => (a -> b -> m a) -> a -> t b -> m a
-foldlM = foldM
-
 -- | Monadic version of foldl that discards its result
 foldlM_ :: (Monad m, Foldable t) => (a -> b -> m a) -> a -> t b -> m ()
 foldlM_ = foldM_
 
--- | Monadic version of foldr
-foldrM        :: (Monad m, Foldable t) => (b -> a -> m a) -> a -> t b -> m a
-foldrM k z x = foldr (\x r -> r >>= k x) (pure z) x
-
 -- | Monadic version of fmap specialised for Maybe
 maybeMapM :: Monad m => (a -> m b) -> (Maybe a -> m (Maybe b))
 maybeMapM _ Nothing  = return Nothing