diff --git a/src/bot/TicTacToeBot.ts b/src/bot/TicTacToeBot.ts
index 24b86a05..997e26ce 100644
--- a/src/bot/TicTacToeBot.ts
+++ b/src/bot/TicTacToeBot.ts
@@ -61,20 +61,28 @@ export default class TicTacToeBot {
      * @param client discord.js client obbject
      */
     public attachToClient(client: Client): void {
-        // Handle slash command if enabled
-        if (this.configuration.command) {
-            const register = new AppCommandRegister(
-                client.application!.commands,
-                this.configuration.command,
-                this.configuration.commandOptionName ?? 'opponent'
-            );
-            client.on('messageCreate', register.handleDeployMessage.bind(register));
-            client.on('interactionCreate', this.command.handleInteraction.bind(this.command));
-        }
+        const onReady = () => {
+            // Handle slash command if enabled
+            if (client.application && this.configuration.command) {
+                const register = new AppCommandRegister(
+                    client.application.commands,
+                    this.configuration.command,
+                    this.configuration.commandOptionName ?? 'opponent'
+                );
+                client.on('messageCreate', register.handleDeployMessage.bind(register));
+                client.on('interactionCreate', this.command.handleInteraction.bind(this.command));
+            }
+
+            // Handle text command if enabled
+            if (this.configuration.textCommand) {
+                client.on('messageCreate', this.command.handleMessage.bind(this.command));
+            }
+        };
 
-        // Handle text command if enabled
-        if (this.configuration.textCommand) {
-            client.on('messageCreate', this.command.handleMessage.bind(this.command));
+        if (client.readyAt) {
+            onReady();
+        } else {
+            client.on('ready', onReady.bind(this));
         }
     }