diff --git a/packages/dynamite/dynamite_runtime/.gitignore b/packages/dynamite/dynamite_runtime/.gitignore
index 3cceda55..e3ce1c0a 100644
--- a/packages/dynamite/dynamite_runtime/.gitignore
+++ b/packages/dynamite/dynamite_runtime/.gitignore
@@ -1,6 +1,7 @@
 # https://dart.dev/guides/libraries/private-files
 # Created by `dart pub`
 .dart_tool/
+build/
 
 # Avoid committing pubspec.lock for library packages; see
 # https://dart.dev/guides/libraries/private-files#pubspeclock.