diff --git a/dist/tools/uf2/.gitignore b/dist/tools/uf2/.gitignore
index f791596322..863cf29443 100644
--- a/dist/tools/uf2/.gitignore
+++ b/dist/tools/uf2/.gitignore
@@ -1 +1,2 @@
 uf2conv.py
+uf2families.json