diff --git a/src/routes/docs/utils.js b/src/routes/docs/utils.js
index 8181ceac..3d877942 100644
--- a/src/routes/docs/utils.js
+++ b/src/routes/docs/utils.js
@@ -1,4 +1,4 @@
-const objectIdPattern = `^[a-fA-F\d]{24}$`;
+const objectIdPattern = `^[a-fA-F\\d]{24}$`;
 const roomsPattern = {
   rooms: {
     name: RegExp(