diff --git a/.gitignore b/.gitignore
index 6e7429c3e0d161..5eb52dcca33ae9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ can/build/
 can/obj/
 can/packer_pyx.cpp
 can/parser_pyx.cpp
+can/packer_impl.cpp