diff --git a/Win32-network/src/System/Win32/Async/File.hs b/Win32-network/src/System/Win32/Async/File.hs
index b1037d7fe44..8b60eb36977 100644
--- a/Win32-network/src/System/Win32/Async/File.hs
+++ b/Win32-network/src/System/Win32/Async/File.hs
@@ -1,5 +1,4 @@
 {-# LANGUAGE BangPatterns        #-}
-{-# LANGUAGE CApiFFI             #-}
 {-# LANGUAGE GADTs               #-}
 {-# LANGUAGE InterruptibleFFI    #-}
 {-# LANGUAGE MultiWayIf          #-}