diff --git a/.gitignore b/.gitignore
index 1a3c4bb..6e3a36a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,7 @@ trivia/megatrivia.txt
 #  developer files
 dev/*
 .use_size
+.use_warn
 conf
 debug*
 src/benchmark*