1 files changed, 1 insertions, 1 deletions
diff --git a/src/dune b/src/dune
index ec9f2d2b..ac0480d3 100644
--- a/src/dune
+++ b/src/dune
@@ -1,6 +1,6 @@
 (executable
  (name main)
- (preprocess (pps ppx_deriving.show ppx_deriving.ord))
+ (preprocess (pps ppx_deriving.show ppx_deriving.ord visitors.ppx))
  (libraries ppx_deriving yojson zarith easy_logging))
 
 (env