diff --git a/paper-api/src/main/java/org/bukkit/event/entity/EntityDamageEvent.java b/paper-api/src/main/java/org/bukkit/event/entity/EntityDamageEvent.java
index f217a89050..3a5a42a065 100644
--- a/paper-api/src/main/java/org/bukkit/event/entity/EntityDamageEvent.java
+++ b/paper-api/src/main/java/org/bukkit/event/entity/EntityDamageEvent.java
@@ -418,6 +418,12 @@ public class EntityDamageEvent extends EntityEvent implements Cancellable {
          * <p>
          * Damage: variable
          */
-        CUSTOM
+        CUSTOM,
+        /**
+         * Damage caused when an entity runs into a wall.
+         * <p>
+         * Damage: variable
+         */
+        FLY_INTO_WALL
     }
 }