diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index b64302a76144..5c59f954f52a 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -36,6 +36,7 @@ config.mak.autogen
 util/intel-pt-decoder/inat-tables.c
 arch/*/include/generated/
 trace/beauty/generated/
+pmu-events/arch/common/common/legacy-cache.json
 pmu-events/pmu-events.c
 pmu-events/jevents
 pmu-events/metric_test.log