diff --git a/src/dune b/src/dune
index f5c2eed64..487e9cfcf 100644
--- a/src/dune
+++ b/src/dune
@@ -1,7 +1,7 @@
 (env
  (dev     (flags :standard -rectypes -w @1..3@5..28@31..39@43@46..47@49..57@61..62-40-9-23-32-67-69 -warn-error -a+31))
  (ci      (flags :standard -rectypes -w @1..3@5..28@31..39@43@46..47@49..57@61..62-40-9-23-32-67-69 -warn-error +a))
- (release (flags :standard -rectypes)
+ (release (flags :standard -rectypes -w @1..3@5..28@31..39@43@46..47@49..57@61..62-40-9-23-32-67-69 -warn-error -a)
           (ocamlopt_flags -O3 -unbox-closures)))