diff --git a/src/grammar/testparser.py b/src/grammar/testparser.py
index 38e57be288b..16babd4194e 100755
--- a/src/grammar/testparser.py
+++ b/src/grammar/testparser.py
@@ -9,6 +9,9 @@
 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 # option. This file may not be copied, modified, or distributed
 # except according to those terms.
+
+# ignore-tidy-linelength
+
 import sys
 
 import os