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-rw-r--r--kernel/environ.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/environ.ml b/kernel/environ.ml
index 7a41e62c47..c38d4186fb 100644
--- a/kernel/environ.ml
+++ b/kernel/environ.ml
@@ -20,6 +20,7 @@
(* This file defines the type of environments on which the
type-checker works, together with simple related functions *)
+open Errors
open Util
open Names
open Sign