diff --git a/.gitignore b/.gitignore
index 3a7664b..68fa01d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,5 @@ Stat_error.knit.md
 .Rhistory
 Stat_error.nb.html
 Stat_error.Rmd
+doc/_main.log
+doc/_book/_main.tex