1 files changed, 2 insertions, 2 deletions
diff --git a/lib/util.ml b/lib/util.ml
index 7d7d380b..38d73d34 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -38,8 +38,8 @@ let is_blank = function
 
 module Empty =
 struct
-  type t
-  let abort (x : t) = assert false
+  type t = { abort : 'a. 'a }
+  let abort (x : t) = x.abort
 end
 
 (* Strings *)