diff --git a/src/parser/test_lexer.ml b/src/parser/test_lexer.ml
index 8a6849fdf..50a2b3e13 100644
--- a/src/parser/test_lexer.ml
+++ b/src/parser/test_lexer.ml
@@ -129,7 +129,7 @@ let rec expect s b = function
 let test s spec =
   let s = Str.global_replace (Str.regexp_string "\r") "" s in
   let b = Lexing.from_string s in
-  Printf.eprintf "=============================\n";
+  (* Printf.eprintf "=============================\n"; *)
   expect s b spec
 
 let () =