diff --git a/.gitignore b/.gitignore
index 3bb09db..e5d09f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,5 @@ examples/using_double_on_avr/test_conversions
 examples/using_union_messages/decode
 examples/using_union_messages/encode
 generator/nanopb_pb2.pyc
+!generator-bin/**/*
+