diff --git a/tools/testing/selftests/proc/.gitignore b/tools/testing/selftests/proc/.gitignore
index bed4b5318a86c..8f3e72e626fa7 100644
--- a/tools/testing/selftests/proc/.gitignore
+++ b/tools/testing/selftests/proc/.gitignore
@@ -10,6 +10,7 @@
 /proc-self-map-files-002
 /proc-self-syscall
 /proc-self-wchan
+/proc-subset-pid
 /proc-uptime-001
 /proc-uptime-002
 /read