diff --git a/lib/commands/linked.js b/lib/commands/linked.js
index 86a70de77..7d95af90b 100644
--- a/lib/commands/linked.js
+++ b/lib/commands/linked.js
@@ -143,7 +143,7 @@ Linked.addLinkedDocument = (Env, data, cb, _S, userId) => {
 
     nThen(waitFor => {
         getMetadata(Env, channel, waitFor((err, metadata) => {
-            if (!metadata.validateKey) {
+            if (!metadata?.validateKey) {
                 waitFor.abort();
                 return void cb(err || 'METADATA_ERROR');
             }
@@ -182,7 +182,7 @@ Linked.resetLinkedDocuments = (Env, data, cb, _S, userId) => {
 
     nThen(waitFor => {
         getMetadata(Env, channel, waitFor((err, metadata) => {
-            if (!metadata.validateKey) {
+            if (!metadata?.validateKey) {
                 waitFor.abort();
                 return void cb(err || 'METADATA_ERROR');
             }
@@ -269,7 +269,7 @@ Linked.removeLinkedDocument = (Env, allData, cb, _S, userId) => {
     let validateKey;
     nThen(waitFor => {
         getMetadata(Env, channel, waitFor((err, metadata) => {
-            if (!metadata.validateKey) {
+            if (!metadata?.validateKey) {
                 waitFor.abort();
                 return void cb(err || 'METADATA_ERROR');
             }