diff --git a/js/server/modules/@arangodb/foxx/router/request.js b/js/server/modules/@arangodb/foxx/router/request.js
index bb4b323dda..a039815fdc 100644
--- a/js/server/modules/@arangodb/foxx/router/request.js
+++ b/js/server/modules/@arangodb/foxx/router/request.js
@@ -64,6 +64,10 @@ module.exports = class SyntheticRequest {
     return this._raw.headers;
   }
 
+  set headers(headers) {
+    this._raw.headers = headers;
+  }
+
   get method() {
     return this._raw.requestType;
   }