diff --git a/scripts/shim.js b/scripts/shim.js
index b2d4adc..647ab8c 100644
--- a/scripts/shim.js
+++ b/scripts/shim.js
@@ -90,7 +90,7 @@ export class shim {
     }
     const mutateOptions = {
       permanent: true,
-      description: effectDocuments[effectDocuments.length - 1]
+      description: effectDocuments[effectDocuments.length - 1]?.name
     }
     for (const effectDocument of effectDocuments) {
       mutation.embedded.ActiveEffect[effectDocument.name] = effectDocument