diff --git a/src/main.mjs b/src/main.mjs
index cd78a3b..e1d356e 100644
--- a/src/main.mjs
+++ b/src/main.mjs
@@ -152,8 +152,8 @@ class DSA41_ChatMessage extends ChatMessage {
         const sender = html.querySelector(".message-sender");
         sender?.replaceChildren(header);
 
-        if (this.flags.dsa41.type === "trefferpunkte" && this.flags.dsa41.targets.length != 0) {
-            const targets = this.flags.dsa41.targets.map(x => fromUuidSync(x, { strict: false })).filter(x => x !== null);
+        if (this.flags.dsa41?.type === "trefferpunkte" && this.flags.dsa41?.targets?.length != 0) {
+            const targets = this.flags.dsa41?.targets.map(x => fromUuidSync(x, { strict: false })).filter(x => x !== null);
             const targets_list = await instantiateTemplate("TrefferpunkteTargets", targets);
 
             html.querySelector(".message-content")?.appendChild(targets_list);