diff --git a/src/dune b/src/dune
index 5be9385..7fa8ed9 100644
--- a/src/dune
+++ b/src/dune
@@ -3,6 +3,10 @@
  (libraries re containers dune-site)
  (preprocess (pps ppx_regexp)))
 
+(env
+ (dev
+  (flags (:standard -warn-error -A))))
+
 (install
  (section (site (aoc inputs)))
  (files (glob_files ../inputs/*)))