diff --git a/paper-api/src/main/java/org/bukkit/event/block/BlockPhysicsEvent.java b/paper-api/src/main/java/org/bukkit/event/block/BlockPhysicsEvent.java
index 70e0ebc5c7..b8e920ba9f 100644
--- a/paper-api/src/main/java/org/bukkit/event/block/BlockPhysicsEvent.java
+++ b/paper-api/src/main/java/org/bukkit/event/block/BlockPhysicsEvent.java
@@ -2,13 +2,12 @@ package org.bukkit.event.block;
 
 import org.bukkit.block.Block;
 import org.bukkit.Material;
+import org.bukkit.event.Cancellable;
 
 /**
  * Thrown when a block physics check is called
- *
- * @author Dinnerbone
  */
-public class BlockPhysicsEvent extends BlockEvent {
+public class BlockPhysicsEvent extends BlockEvent implements Cancellable {
     private final int changed;
     private boolean cancel = false;
 
diff --git a/paper-api/src/main/java/org/bukkit/event/player/PlayerBucketFillEvent.java b/paper-api/src/main/java/org/bukkit/event/player/PlayerBucketFillEvent.java
index 5002ca8d9e..3fef2f7dfd 100644
--- a/paper-api/src/main/java/org/bukkit/event/player/PlayerBucketFillEvent.java
+++ b/paper-api/src/main/java/org/bukkit/event/player/PlayerBucketFillEvent.java
@@ -4,9 +4,10 @@ import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
 import org.bukkit.inventory.ItemStack;
 
-public class PlayerBucketFillEvent extends PlayerEvent {
+public class PlayerBucketFillEvent extends PlayerEvent implements Cancellable {
     ItemStack itemStack;
     boolean cancelled = false;
     Block blockClicked;