diff --git a/Dart.gitignore b/Dart.gitignore
index 2c6a959a..16b5be3d 100644
--- a/Dart.gitignore
+++ b/Dart.gitignore
@@ -6,3 +6,7 @@
 build/
 # If you're building an application, you may want to check-in your pubspec.lock.
 pubspec.lock
+
+# Directory created by dartdoc.
+# If you don't generate documentation locally you can remove this line.
+doc/api/