diff --git a/index.js b/index.js
index 404d8f0..4c10b8b 100644
--- a/index.js
+++ b/index.js
@@ -15,7 +15,7 @@ const skipModels = new Set(['gray']);
 const styles = Object.create(null);
 
 function escapeStringRegexp(str) {
- return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+	return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
 }
 
 function applyOptions(obj, options = {}) {