diff --git a/src/discord/monitor.slash.test.ts b/src/discord/monitor.slash.test.ts
index a6c43087d..d5488cb98 100644
--- a/src/discord/monitor.slash.test.ts
+++ b/src/discord/monitor.slash.test.ts
@@ -16,6 +16,7 @@ vi.mock("@buape/carbon", () => ({
   MessageCreateListener: class {},
   MessageReactionAddListener: class {},
   MessageReactionRemoveListener: class {},
+  PresenceUpdateListener: class {},
   Row: class {
     constructor(_components: unknown[]) {}
   },