diff --git a/.gitignore b/.gitignore
index 5d6a798..dc712cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,13 @@
 .RData
 .Ruserdata
 extras/CodeToRun.R
+
+# OS generated files #
+######################
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db