diff --git a/tools/pre-commit-checkignore.txt b/tools/pre-commit-checkignore.txt
index d7598f4c9d..7b06998a70 100644
--- a/tools/pre-commit-checkignore.txt
+++ b/tools/pre-commit-checkignore.txt
@@ -9,3 +9,4 @@
 #
 
 tools/lemon/lemon.c
+tools/lemon/lempar.c