diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 000000000..1d89e6bbb
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,14 @@
+# Ignore all paths.
+**/*.*
+
+# Enable prettier for the following paths.
+!setup/**/*.js
+!lib/**/*.js
+!bin/*.js
+!hot/*.js
+!buildin/*.js
+!test/*.js
+!test/**/webpack.config.js
+!examples/**/webpack.config.js
+!schemas/**/*.js
+!declarations.d.ts
diff --git a/package.json b/package.json
index ab8cc8eec..261a0c1d0 100644
--- a/package.json
+++ b/package.json
@@ -118,7 +118,7 @@
     "code-lint": "eslint --cache setup lib bin hot buildin \"test/*.js\" \"test/**/webpack.config.js\" \"examples/**/webpack.config.js\" \"schemas/**/*.js\"",
     "type-lint": "tsc --pretty",
     "fix": "yarn code-lint --fix",
-    "pretty": "prettier \"setup/**/*.js\" \"lib/**/*.js\" \"bin/*.js\" \"hot/*.js\" \"buildin/*.js\" \"test/*.js\" \"test/**/webpack.config.js\" \"examples/**/webpack.config.js\" \"schemas/**/*.js\" \"declarations.d.ts\" --write",
+    "pretty": "prettier --write \"setup/**/*.js\" \"lib/**/*.js\" \"bin/*.js\" \"hot/*.js\" \"buildin/*.js\" \"test/*.js\" \"test/**/webpack.config.js\" \"examples/**/webpack.config.js\" \"schemas/**/*.js\" \"declarations.d.ts\"",
     "schema-lint": "node --max-old-space-size=4096 node_modules/jest-cli/bin/jest --testMatch \"<rootDir>/test/*.lint.js\" --no-verbose",
     "benchmark": "node --max-old-space-size=4096 --trace-deprecation node_modules/jest-cli/bin/jest --testMatch \"<rootDir>/test/*.benchmark.js\" --runInBand",
     "cover": "yarn cover:init && yarn cover:all && yarn cover:report",