diff --git a/src/client/graphics/layers/EventsDisplay.ts b/src/client/graphics/layers/EventsDisplay.ts
index d68a038a7..55a37e677 100644
--- a/src/client/graphics/layers/EventsDisplay.ts
+++ b/src/client/graphics/layers/EventsDisplay.ts
@@ -274,7 +274,7 @@ export class EventsDisplay extends LitElement implements Layer {
       this.addEvent({
         description:
           `You broke your alliance with ${betrayed.name()}, making you a TRAITOR ` +
-          `(${malusPercent}% defense debuff)`,
+          `(${malusPercent}% defense debuff for 30 seconds)`,
         type: MessageType.ERROR,
         highlight: true,
         createdAt: this.game.ticks(),