diff --git a/.gitignore b/.gitignore
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ bin/ai/*
 bin/baseset/*
 !bin/baseset/openttd.grf
 !bin/baseset/opntitle.dat
+!bin/baseset/orig_extra.grf
 !bin/baseset/orig_*.obg
 !bin/baseset/orig_*.obs
 !bin/baseset/no_sound.obs