diff --git a/src/main/java/org/bukkit/inventory/meta/CrossbowMeta.java b/src/main/java/org/bukkit/inventory/meta/CrossbowMeta.java
index 84107fa2..454023d1 100644
--- a/src/main/java/org/bukkit/inventory/meta/CrossbowMeta.java
+++ b/src/main/java/org/bukkit/inventory/meta/CrossbowMeta.java
@@ -37,7 +37,8 @@ public interface CrossbowMeta extends ItemMeta {
      * Adds a charged projectile to this item.
      *
      * @param item projectile
-     * @throws IllegalArgumentException if the projectile is not an arrow
+     * @throws IllegalArgumentException if the projectile is not an arrow or
+     * firework rocket
      */
     void addChargedProjectile(@NotNull ItemStack item);
 }