diff --git a/doc/.gitignore b/doc/.gitignore
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..a1363379944a5745ceb49c0e493d80eb9335c79a 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -0,0 +1 @@
+*.pdf