diff --git a/.gitignore b/.gitignore
index ca36ec8810..bb13dcd3f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@
 /build_log_perftest
 /canon_perftest
 /clparser_perftest
+/elide_middle_perftest
 /depfile_parser_perftest
 /hash_collision_bench
 /ninja_test