diff --git a/.gitignore b/.gitignore
index 7982ff7af3c6de8aac6a4cede5aee8da3f148fdd..d014532cec68bffbcc23d55847a9d242b171cc36 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ doc/asdf.pdf
 doc/asdf.pg
 doc/asdf.toc
 doc/asdf.tp
+doc/asdf.tps
 doc/asdf.vr
 doc/asdf.vrs
 doc/asdf.t2d/