diff --git a/.gitignore b/.gitignore
index 816249f39cee5a13ca5c18b352b45736a40bfd7f..3420055ff2b5d17db4c10b82f92d09f7b3533026 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # Prerequisites
 build/*
+cmake-build-*/
 build_stretch/*
 test/build
 *.txt.user
@@ -69,4 +70,7 @@ cmake_install.cmake
 # Editor's temp files
 *~
 .idea/
-cmake-build-*/
+
+# OS files
+.DS_Store
+