diff --git a/src/modules/helpchan.ts b/src/modules/helpchan.ts
index 5cfca5e7..db36549b 100644
--- a/src/modules/helpchan.ts
+++ b/src/modules/helpchan.ts
@@ -356,7 +356,7 @@ export class HelpChanModule extends Module {
 		// to creation date), so sorting is needed to find the latest embed.
 		let lastMessage = channel.messages.cache
 			.array()
-			.filter(m => m.author.id === this.client.user?.id)
+			.filter(m => m.author && m.author.id === this.client.user?.id)
 			.sort((m1, m2) => m2.createdTimestamp - m1.createdTimestamp)
 			.find(m => m.embeds.some(isStatusEmbed));
 
@@ -364,7 +364,7 @@ export class HelpChanModule extends Module {
 			// Fetch has a stable order, with recent messages first
 			lastMessage = (await channel.messages.fetch({ limit: 5 }))
 				.array()
-				.filter(m => m.author.id === this.client.user?.id)
+				.filter(m => m.author && m.author.id === this.client.user?.id)
 				.find(m => m.embeds.some(isStatusEmbed));
 
 		if (lastMessage) {