diff --git a/src/Text/Pandoc.hs b/src/Text/Pandoc.hs
index 2b6474b9f..a4caf106d 100644
--- a/src/Text/Pandoc.hs
+++ b/src/Text/Pandoc.hs
@@ -91,6 +91,7 @@ module Text.Pandoc
                , writeEPUB
                -- * Writer options used in writers 
                , WriterOptions (..)
+               , HTMLSlideVariant (..)
                , HTMLMathMethod (..)
                , defaultWriterOptions
                -- * Rendering templates and default templates
diff --git a/src/pandoc.hs b/src/pandoc.hs
index 9947c13f0..31c43d907 100644
--- a/src/pandoc.hs
+++ b/src/pandoc.hs
@@ -32,7 +32,7 @@ module Main where
 import Text.Pandoc
 import Text.Pandoc.Writers.S5 (s5HeaderIncludes)
 import Text.Pandoc.Shared ( tabFilter, ObfuscationMethod (..), readDataFile,
-                            headerShift, HTMLSlideVariant(..) )
+                            headerShift )
 #ifdef _HIGHLIGHTING
 import Text.Pandoc.Highlighting ( languages )
 #endif