diff --git a/src/sync.mjs b/src/sync.mjs
index 965567e..f421ccc 100644
--- a/src/sync.mjs
+++ b/src/sync.mjs
@@ -150,7 +150,7 @@ export function enrich_actor(actor) {
             actor.system.details.race.name :
             ''
 
-    clone_pc.attributes.spellcaster = Boolean(Object.values(clone_pc.spells).map(s => s.max ?? 0).sum())
+    clone_pc.attributes.spellcaster = Boolean(Object.values(actor.system?.spells).map(s => s?.max ?? 0).sum())
 
 
     return {