diff --git a/.gitignore b/.gitignore
index a46e2b704..ea62da0ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,4 @@ _log
 
 docs/build
 docs/source
+ppx_elpi/tests/pp.exe
diff --git a/ppx_elpi/ppx_elpi.ml b/ppx_elpi/ppx_elpi.ml
index bfa187a36..141fcfc94 100644
--- a/ppx_elpi/ppx_elpi.ml
+++ b/ppx_elpi/ppx_elpi.ml
@@ -270,6 +270,7 @@ let elpi_loc_of_position (module B : Ast_builder.S) pos = let open B in
   }]
 
 let pexp_disable_warnings (module B : Ast_builder.S) x =
+  let open B in
   [%expr [%e x ][@warning "-26-27-32-39-60"]]
 
 let rec on_last f = function
diff --git a/ppx_elpi/tests/pp.exe b/ppx_elpi/tests/pp.exe
deleted file mode 100755
index 5baf12a6b..000000000
Binary files a/ppx_elpi/tests/pp.exe and /dev/null differ