From 2a9cd45ef164b598cd36b7c276ca325f5712982d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Loi=CC=88c=20Correnson?= <loic.correnson@cea.fr>
Date: Thu, 18 Nov 2021 08:48:48 +0100
Subject: [PATCH] [wp] letify lookup v-subst

---
 src/plugins/wp/Letify.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/wp/Letify.ml b/src/plugins/wp/Letify.ml
index 5d26dea8e0d..8ed7a228727 100644
--- a/src/plugins/wp/Letify.ml
+++ b/src/plugins/wp/Letify.ml
@@ -271,7 +271,7 @@ struct
     | None ->
         let s = Lang.sigma () in
         F.Subst.add_fun s (lookup sigma.def) ;
-        F.Subst.add_map s sigma.cst ;
+        F.Subst.add_fun s (fun e -> Tmap.find e sigma.cst) ;
         F.Subst.add_filter s (filter sigma.dall) ;
         sigma.cache <- Some s ; s
 
-- 
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