From 9b700376f890784e0b933b627ed2573addad1ca7 Mon Sep 17 00:00:00 2001
From: Stephen Paul Weber <singpolyma@singpolyma.net>
Date: Sun, 12 May 2019 15:22:46 -0500
Subject: [PATCH] Enum should not have itself in the alts

---
 lib/dhall/ast.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dhall/ast.rb b/lib/dhall/ast.rb
index ae95c0c..738abc2 100644
--- a/lib/dhall/ast.rb
+++ b/lib/dhall/ast.rb
@@ -886,7 +886,7 @@ module Dhall
 
 		def self.from(alts, tag, value)
 			if value.nil?
-				Enum.new(tag: tag, alternatives: alts)
+				Enum.new(tag: tag, alternatives: alts.without(tag))
 			else
 				new(
 					tag:          tag,
-- 
2.34.2