diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index eaec9b2b23..952f2d5119 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -450,6 +450,12 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
         return getHandle().isHandRaised();
     }
 
+    @Override
+    public ItemStack getItemInUse() {
+        net.minecraft.world.item.ItemStack item = getHandle().getActiveItem();
+        return item.isEmpty() ? null : CraftItemStack.asCraftMirror(item);
+    }
+
     @Override
     public boolean setWindowProperty(InventoryView.Property prop, int value) {
         return false;
diff --git a/paper-server/src/test/java/org/bukkit/PerMaterialTest.java b/paper-server/src/test/java/org/bukkit/PerMaterialTest.java
index ab00359f92..3190c01952 100644
--- a/paper-server/src/test/java/org/bukkit/PerMaterialTest.java
+++ b/paper-server/src/test/java/org/bukkit/PerMaterialTest.java
@@ -242,6 +242,13 @@ public class PerMaterialTest extends AbstractTestingBase {
         }
     }
 
+    @Test
+    public void testSlipperiness() {
+        if (material.isBlock()) {
+            assertThat(material.getSlipperiness(), is(CraftMagicNumbers.getBlock(material).getFrictionFactor()));
+        }
+    }
+
     @Test
     public void testBlockDataCreation() {
         if (material.isBlock()) {