diff --git a/.gitignore b/.gitignore
index 4623c7a..a6034f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -181,3 +181,5 @@ sympy-plots-for-*.tex/
 .vagrant
 auto/
 *.pdf
+/docs/doku.listing
+/docs/doku.tex