diff --git a/src/Text/Pandoc/UTF8.hs b/src/Text/Pandoc/UTF8.hs
index 6d9ac1d1a..a77f92cdc 100644
--- a/src/Text/Pandoc/UTF8.hs
+++ b/src/Text/Pandoc/UTF8.hs
@@ -39,7 +39,7 @@ module Text.Pandoc.UTF8 ( readFile
 
 where
 
-#ifdef MIN_VERSION_base(4,2,0)
+#if MIN_VERSION_base(4,2,0)
 
 import System.IO hiding (readFile, writeFile, getContents,
                           putStr, putStrLn, hPutStr, hPutStrLn, hGetContents)