diff --git a/doc/classes/Array.xml b/doc/classes/Array.xml
index 909380b3b2d..de3d89ee0f6 100644
--- a/doc/classes/Array.xml
+++ b/doc/classes/Array.xml
@@ -313,7 +313,8 @@
- Returns a hashed integer value representing the array contents.
+ Returns a hashed integer value representing the array and its contents.
+ [b]Note:[/b] Arrays with equal contents can still produce different hashes. Only the exact same arrays will produce the same hashed integer value.