diff --git a/jsonschema-schema.xml b/jsonschema-schema.xml
index aebacfed..9da21733 100644
--- a/jsonschema-schema.xml
+++ b/jsonschema-schema.xml
@@ -212,8 +212,9 @@
             <section title="Default values for missing keywords">
 
                 <t>
-                    Some keywords, if absent, MAY be regarded by implementations as having
-                    a default value. In this case, the default value will be mentioned.
+                    Where keywords are specified which MAY be absent but which have a default value
+                    described, implementations MUST produce the same results whether the keyword is
+                    absent or whether it is present and has the default value.
                 </t>
 
             </section>