diff --git a/ember-autofocus-modifier/.prettierignore b/ember-autofocus-modifier/.prettierignore
new file mode 100644
index 00000000..4178fd57
--- /dev/null
+++ b/ember-autofocus-modifier/.prettierignore
@@ -0,0 +1,25 @@
+# unconventional js
+/blueprints/*/files/
+/vendor/
+
+# compiled output
+/dist/
+/tmp/
+
+# dependencies
+/bower_components/
+/node_modules/
+
+# misc
+/coverage/
+!.*
+.eslintcache
+.lint-todo/
+
+# ember-try
+/.node_modules.ember-try/
+/bower.json.ember-try
+/npm-shrinkwrap.json.ember-try
+/package.json.ember-try
+/package-lock.json.ember-try
+/yarn.lock.ember-try