diff --git a/unix/.gitignore b/unix/.gitignore
index b93755326f..eeafecf18a 100644
--- a/unix/.gitignore
+++ b/unix/.gitignore
@@ -2,9 +2,11 @@ build
 build-fast
 build-minimal
 build-coverage
+build-nanbox
 micropython
 micropython_fast
 micropython_minimal
 micropython_coverage
+micropython_nanbox
 *.py
 *.gcov