diff --git a/paper-api/src/main/java/org/bukkit/potion/PotionEffectType.java b/paper-api/src/main/java/org/bukkit/potion/PotionEffectType.java
index c0cae2b547..aa17528f1c 100644
--- a/paper-api/src/main/java/org/bukkit/potion/PotionEffectType.java
+++ b/paper-api/src/main/java/org/bukkit/potion/PotionEffectType.java
@@ -280,6 +280,7 @@ public abstract class PotionEffectType {
 
     /**
      * Returns an array of all the registered {@link PotionEffectType}s.
+     * This array is not necessarily in any particular order and may contain null.
      *
      * @return Array of types.
      */