diff --git a/hook.js b/hook.js
index aa22356..3d46ba4 100644
--- a/hook.js
+++ b/hook.js
@@ -310,6 +310,9 @@ const primary = namespaces.shift()
 for (const [k, v] of Object.entries(primary)) {
   _[k] = v
 }
+for (const k of Object.getOwnPropertySymbols(primary)) {
+  _[k] = primary[k]
+}
 for (const ns of namespaces) {
   for (const [k, v] of Object.entries(ns)) {
     if (k === 'default') continue