diff --git a/reference/array/functions/array-keys.xml b/reference/array/functions/array-keys.xml
index b5c508cc21..84dcb70f70 100644
--- a/reference/array/functions/array-keys.xml
+++ b/reference/array/functions/array-keys.xml
@@ -11,7 +11,7 @@
arrayarray_keys
arrayarray
- mixedsearch_value&null;
+ mixedsearch_value
boolstrictfalse