change that triggers weird compilation error

change that triggers weird compilation error

diff --git a/src/boot/driver/main.ml b/src/boot/driver/main.ml
index ddcbc9a..5a5c7ce 100644
--- a/src/boot/driver/main.ml
+++ b/src/boot/driver/main.ml
@@ -35,7 +35,7 @@ let (sess:Session.sess) =
      *)
     Session.sess_targ = targ;
     Session.sess_log_lex = false;
-    Session.sess_log_parse = false;
+    Session.sess_log_parse = true;
     Session.sess_log_ast = false;
     Session.sess_log_sig = false;
     Session.sess_log_passes = false;