missed one

src/viki.js

@@ -61,7 +61,7 @@ client.on("guildCreate", guild =>
 {
   // This event triggers when the bot joins a guild.
   console.log(`New guild joined: ${guild.name} (id: ${guild.id}). This guild has ${guild.memberCount} members!`);
-  client.user.setActivity(`Serving ${client.guilds.size} servers`);
+  client.user.setActivity(`Serving ${client.guilds.cache.size} servers`);
 });
 
 client.on("guildDelete", guild => {