diff --git a/lib/.gitignore b/lib/.gitignore
new file mode 100644
index 00000000..5d195d36
--- /dev/null
+++ b/lib/.gitignore
@@ -0,0 +1,5 @@
+*.o
+bossac/bin/
+bossac/obj/
+hidflash/hid-flash
+hub-ctrl/hub-ctrl