diff --git a/firmware/cis/.gitignore b/firmware/cis/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..1de39847f261da6faeaa9d7e8b8e803061b6e003
--- /dev/null
+++ b/firmware/cis/.gitignore
@@ -0,0 +1 @@
+*.cis