diff --git a/Language/Haskell/GhcMod/CaseSplit.hs b/Language/Haskell/GhcMod/CaseSplit.hs
index 5067d5e..ce6faee 100644
--- a/Language/Haskell/GhcMod/CaseSplit.hs
+++ b/Language/Haskell/GhcMod/CaseSplit.hs
@@ -15,7 +15,7 @@ import qualified Language.Haskell.GhcMod.Gap as Gap
 import Language.Haskell.GhcMod.Monad
 import Language.Haskell.GhcMod.SrcUtils
 import Language.Haskell.GhcMod.Convert
-import MonadUtils (liftIO)
+import CoreMonad (liftIO)
 import Outputable (PprStyle)
 import qualified Type as Ty
 import qualified TyCon as Ty
diff --git a/Language/Haskell/GhcMod/FillSig.hs b/Language/Haskell/GhcMod/FillSig.hs
index 88a83c7..7cb2dc9 100644
--- a/Language/Haskell/GhcMod/FillSig.hs
+++ b/Language/Haskell/GhcMod/FillSig.hs
@@ -13,7 +13,7 @@ import qualified Language.Haskell.GhcMod.Gap as Gap
 import Language.Haskell.GhcMod.Convert
 import Language.Haskell.GhcMod.Monad
 import Language.Haskell.GhcMod.SrcUtils
-import MonadUtils (liftIO)
+import CoreMonad (liftIO)
 import Outputable (PprStyle)
 import qualified Type as Ty
 import qualified HsBinds as Ty
diff --git a/Language/Haskell/GhcMod/Lint.hs b/Language/Haskell/GhcMod/Lint.hs
index b88ca5f..ede48c2 100644
--- a/Language/Haskell/GhcMod/Lint.hs
+++ b/Language/Haskell/GhcMod/Lint.hs
@@ -2,7 +2,7 @@ module Language.Haskell.GhcMod.Lint where
 
 import Exception (ghandle)
 import Control.Exception (SomeException(..))
-import Control.Monad.Trans (liftIO)
+import CoreMonad (liftIO)
 import Language.Haskell.GhcMod.Logger (checkErrorPrefix)
 import Language.Haskell.GhcMod.Convert
 import Language.Haskell.GhcMod.Monad
diff --git a/Language/Haskell/GhcMod/PkgDoc.hs b/Language/Haskell/GhcMod/PkgDoc.hs
index 2f829ab..02f882a 100644
--- a/Language/Haskell/GhcMod/PkgDoc.hs
+++ b/Language/Haskell/GhcMod/PkgDoc.hs
@@ -1,6 +1,6 @@
 module Language.Haskell.GhcMod.PkgDoc (pkgDoc) where
 
-import Control.Monad.Trans (liftIO)
+import CoreMonad (liftIO)
 import Language.Haskell.GhcMod.Types
 import Language.Haskell.GhcMod.GhcPkg
 import Language.Haskell.GhcMod.Monad
diff --git a/src/GHCMod.hs b/src/GHCMod.hs
index e2e2a4f..2856a87 100644
--- a/src/GHCMod.hs
+++ b/src/GHCMod.hs
@@ -5,7 +5,7 @@ module Main where
 import Config (cProjectVersion)
 import Control.Applicative ((<$>))
 import Control.Exception (Exception, Handler(..), ErrorCall(..))
-import Control.Monad.Trans (liftIO)
+import CoreMonad (liftIO)
 import qualified Control.Exception as E
 import Data.Typeable (Typeable)
 import Data.Version (showVersion)