diff --git a/fuzzers/007-timing/.gitignore b/fuzzers/007-timing/.gitignore
new file mode 100644
index 00000000..759ac773
--- /dev/null
+++ b/fuzzers/007-timing/.gitignore
@@ -0,0 +1,2 @@
+*.json
+sdfs
diff --git a/fuzzers/007-timing/routing-bels/.gitignore b/fuzzers/007-timing/routing-bels/.gitignore
new file mode 100644
index 00000000..8d080e88
--- /dev/null
+++ b/fuzzers/007-timing/routing-bels/.gitignore
@@ -0,0 +1 @@
+*json