1 files changed, 1 insertions, 1 deletions
diff --git a/scTypes.mli b/scTypes.mli
index de0d6f2..ad0d0ee 100755
--- a/scTypes.mli
+++ b/scTypes.mli
@@ -94,7 +94,7 @@ module Refs : sig
     | Matrix: 'a dataFormat * 'a list list -> 'a list list content
 
   type refContent =
-    | C: 'a content -> refContent
+    | C: 'a content -> refContent [@@unboxed]
 
   (** extract the content from a range.