diff --git a/index.js b/index.js
index 97ce35a..9fbef18 100644
--- a/index.js
+++ b/index.js
@@ -207,7 +207,7 @@ const fillLetters = (start, end, step = 1, options = {}) => {
   }
 
   if (options.toRegex === true) {
-    return toRegex(range, null, { wrap: false, options });
+    return toRegex(range, null, { wrap: false, ...options });
   }
 
   return range;