diff --git a/paper-api/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java b/paper-api/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java
index b915c3cab1..01c5e8b713 100644
--- a/paper-api/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java
+++ b/paper-api/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java
@@ -253,6 +253,10 @@ public class EntityPotionEffectEvent extends EntityEvent implements Cancellable
          * When a villager gets regeneration after a trade.
          */
         VILLAGER_TRADE,
+        /**
+         * When an entity gets the effect from a warden.
+         */
+        WARDEN,
         /**
          * When an entity comes in contact with a wither rose.
          */