diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaCrossbow.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaCrossbow.java
index b3ace0bf2d..15fc0115cb 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaCrossbow.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaCrossbow.java
@@ -141,7 +141,7 @@ public class CraftMetaCrossbow extends CraftMetaItem implements CrossbowMeta {
     @Override
     public void addChargedProjectile(ItemStack item) {
         Preconditions.checkArgument(item != null, "item");
-        Preconditions.checkArgument(CraftMagicNumbers.getItem(item.getType()) instanceof ItemArrow, "Item %s is not an arrow", item);
+        Preconditions.checkArgument(item.getType() == Material.FIREWORK_ROCKET || CraftMagicNumbers.getItem(item.getType()) instanceof ItemArrow, "Item %s is not an arrow or firework rocket", item);
 
         if (chargedProjectiles == null) {
             chargedProjectiles = new ArrayList<>();