diff -ruN haskell-mode.el.orig/Makefile haskell-mode.el/Makefile
--- haskell-mode.el.orig/Makefile	2016-04-16 18:48:16.452527000 +0200
+++ haskell-mode.el/Makefile	2016-04-16 18:48:01.227115000 +0200
@@ -2,7 +2,7 @@
 # $FreeBSD: head/lang/haskell-mode.el/Makefile 412342 2016-04-01 13:18:17Z mat $
 
 PORTNAME=	haskell-mode
-PORTVERSION=	13.18
+PORTVERSION=	13.20
 DISTVERSIONPREFIX=v
 CATEGORIES=	lang elisp
 
@@ -23,6 +23,7 @@
 
 ELISPDIR=	${PREFIX}/${PLIST_DIRS}
 ELISPFILES=	ghc-core.el ghci-script-mode.el haskell-align-imports.el \
+		haskell-c2hs.el \
 		haskell-cabal.el haskell-checkers.el \
 		haskell-collapse.el haskell-commands.el \
 		haskell-compile.el haskell-compat.el \
@@ -35,7 +36,7 @@
 		haskell-menu.el haskell-mode-pkg.el haskell-mode.el \
 		haskell-mode-autoloads.el haskell-modules.el \
 		haskell-move-nested.el haskell-navigate-imports.el \
-		haskell-package.el haskell-presentation-mode.el \
+		haskell-presentation-mode.el \
 		haskell-process.el haskell-repl.el haskell-sandbox.el \
 		haskell-session.el \
 		haskell-sort-imports.el haskell-string.el \
diff -ruN haskell-mode.el.orig/distinfo haskell-mode.el/distinfo
--- haskell-mode.el.orig/distinfo	2016-04-16 18:48:16.452608000 +0200
+++ haskell-mode.el/distinfo	2016-04-16 18:48:01.227169000 +0200
@@ -1,2 +1,2 @@
-SHA256 (haskell-haskell-mode-v13.18_GH0.tar.gz) = 144c39f748b41391918334c29700dc0dc8661070387eee543bf182ed11f10b9c
-SIZE (haskell-haskell-mode-v13.18_GH0.tar.gz) = 555164
+SHA256 (haskell-haskell-mode-v13.20_GH0.tar.gz) = 051171583e343e75f0f477d88fdde9b5402dad2da86512d22c721172cd12ffe4
+SIZE (haskell-haskell-mode-v13.20_GH0.tar.gz) = 1181443