2 files changed, 4 insertions, 0 deletions
diff --git a/src/Text/Pandoc/Writers/Powerpoint/Output.hs b/src/Text/Pandoc/Writers/Powerpoint/Output.hs
index 410b6c20c..2ece78c01 100644
--- a/src/Text/Pandoc/Writers/Powerpoint/Output.hs
+++ b/src/Text/Pandoc/Writers/Powerpoint/Output.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE NoImplicitPrelude #-}
 {-# LANGUAGE PatternGuards #-}
 
 {-
@@ -34,6 +35,7 @@ Text.Pandoc.Writers.Powerpoint.Presentation) to a zip archive.
 module Text.Pandoc.Writers.Powerpoint.Output ( presentationToArchive
                                              ) where
 
+import Prelude
 import Control.Monad.Except (throwError, catchError)
 import Control.Monad.Reader
 import Control.Monad.State
diff --git a/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs b/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs
index fcd124e76..ac6001d2b 100644
--- a/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs
+++ b/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE NoImplicitPrelude #-}
 {-# LANGUAGE PatternGuards #-}
 
 {-
@@ -57,6 +58,7 @@ module Text.Pandoc.Writers.Powerpoint.Presentation ( documentToPresentation
                                                    ) where
 
 
+import Prelude
 import Control.Monad.Reader
 import Control.Monad.State
 import Data.List (intercalate)