diff --git a/steps/src/main/xml/steps/cast-content-type.xml b/steps/src/main/xml/steps/cast-content-type.xml
index 27bfb0c..bd80c04 100644
--- a/steps/src/main/xml/steps/cast-content-type.xml
+++ b/steps/src/main/xml/steps/cast-content-type.xml
@@ -58,12 +58,10 @@ model document into XML is
Casting from a JSON media type to an XML media type, converts the
-JSON into XML. The precise nature of the conversion from JSON to XML
-is implementation-defined.
-If the input document is a text node or other string representation,
-implementations should use fn:json-to-xml
-by default.
-
+JSON into XML. An implementation must support the format
+specified in section “XML Representation of JSON” of
+as default for the resulting XML. It is implementation defined whether
+other result formats are supported.