diff --git a/src/commands/whois.ts b/src/commands/whois.ts
index 4717875..08e0018 100644
--- a/src/commands/whois.ts
+++ b/src/commands/whois.ts
@@ -91,7 +91,7 @@ export default class Whois extends Command {
       if (bit & 4) permissions.push('Ban Members');
       if (bit & 2) permissions.push('Kick Members');
       const account = await this.client.db.Member.findOne({ userID: member.id }).lean().exec();
-      if (account?.additional?.langs.length > 0) {
+      if (account?.additional?.langs?.length > 0) {
         const langs: string[] = [];
         for (const lang of account.additional.langs.sort((a, b) => a.localeCompare(b))) {
           switch (lang) {
@@ -137,7 +137,7 @@ export default class Whois extends Command {
         }
         embed.addField('Known Languages', langs.join(', '));
       }
-      if (account?.additional?.operatingSystems.length > 0) {
+      if (account?.additional?.operatingSystems?.length > 0) {
         const operatingSystems: string[] = [];
         for (const os of account.additional.operatingSystems.sort((a, b) => a.localeCompare(b))) {
           switch (os) {