diff --git a/.gitignore b/.gitignore
index a6c57f5..92dbde6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-*.json
+clangtidy_result.json
diff --git a/expected.json b/expected.json
new file mode 100644
index 0000000..7e5c04f
--- /dev/null
+++ b/expected.json
@@ -0,0 +1 @@
+[{"name":"cpplint","results":[{"score":0,"comment":""}]}]