diff --git a/.gitignore b/.gitignore
index fdfcad6..8a29f11 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,14 +1,15 @@
 build/
 slides.aux
 slides.log
 slides.nav
 slides.out
 slides.snm
 slides.synctex.gz
 slides.toc
 slides.vrb
 exercise_sheet.aux
 exercise_sheet.log
 exercise_sheet.out
 exercise_sheet.synctex.gz
 *.pdf
+*.swp