diff --git a/.gitignore b/.gitignore
index f0624a0293..f24e0743a1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,21 +1,21 @@
-build/
-doc/
-testing/test_package/doc
-testing/test_package_small/doc
-packages
 .buildlog
-.pub
-
-.idea
+.DS_Store
 .atom/
-
+.dart_tool/
+.idea/
 .packages
+.pub
 .settings/
-.DS_Store
-*.iml
-
+build/
+doc/
+packages
 pub.dartlang.org/
+testing/test_package/doc
+testing/test_package_small/doc
 
 *.dart.js
+*.iml
+*.ipr
+*.iws
 *.js.deps
 *.js.map