diff --git a/src/events/ready.ts b/src/events/ready.ts
index 0ecf7c5..427477d 100644
--- a/src/events/ready.ts
+++ b/src/events/ready.ts
@@ -1,4 +1,5 @@
 import { Events } from 'discord.js';
+import { createHash } from 'crypto';
 import { KordClient } from '../client/KordClient';
 import { logger } from '../utils/logger';
 import { InviteService } from '../services/InviteService';
@@ -20,16 +21,19 @@ export default {
     EventService.startReminderLoop(client);
 
     try {
-      const lockKey = 'commands:sync:lock';
-      // EX 300 = 5 minutes lock. Only one instance needs to do this per boot cycle.
+      const commandsData = Array.from(client.commands.values()).map(c => c.data.toJSON());
+      const commandsHash = createHash('sha256')
+        .update(JSON.stringify(commandsData))
+        .digest('hex');
+      const lockKey = `commands:sync:lock:${commandsHash}`;
+      // Lock per command definition set so updated commands can still sync on the next boot.
       const acquired = await redis.set(lockKey, '1', 'EX', 300, 'NX');
-      
+
       if (acquired) {
-        const commandsData = Array.from(client.commands.values()).map(c => c.data.toJSON());
         await client.application?.commands.set(commandsData);
-        logger.info(`Successfully registered ${commandsData.length} global application commands.`);
+        logger.info(`Successfully registered ${commandsData.length} global application commands. hash=${commandsHash}`);
       } else {
-        logger.info('Global commands registration skipped (already handled by another instance).');
+        logger.info(`Global commands registration skipped for hash=${commandsHash} (already handled by another instance).`);
       }
     } catch (e) {
       logger.error('Failed to register global commands', e);