diff --git a/.gitignore b/.gitignore
index 6eeec080..d008d9de 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ html/
 latex/
 *.pdf
 *.tag
+.DS_Store
 # These are generated
 include/libopencm3/**/nvic.h
 include/libopencm3/**/**/nvic.h