diff --git a/tools/testing/selftests/gpio/.gitignore b/tools/testing/selftests/gpio/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..7d14f743d1a45c1b865ec883ef41c3454cc4636d
--- /dev/null
+++ b/tools/testing/selftests/gpio/.gitignore
@@ -0,0 +1 @@
+gpio-mockup-chardev