diff --git a/dune b/dune
index 69fd3ec..b6f39d0 100644
--- a/dune
+++ b/dune
@@ -1,4 +1,4 @@
 
 (env
-  (_ (flags :standard -strict-sequence -warn-error -a+8 -w +a-4-40-70)))
+  (_ (flags :standard -strict-sequence -warn-error -a+8+26+27 -w +a-4-40-70)))