--- a/spec/latest/json-ld-syntax/index.html	Tue Dec 11 15:59:35 2012 +0100
+++ b/spec/latest/json-ld-syntax/index.html	Tue Dec 11 18:04:03 2012 +0100
@@ -2912,6 +2912,10 @@
     In that case, a consumer MUST only use the default graph and ignore all named graphs.
     This allows servers to expose data in, e.g., both Turtle and JSON-LD using content
     negotiation.</p>
+
+  <p class="note">Publishers supporting both dataset and graph syntaxes have to ensure that
+    the primary data is stored in the default graph to enable consumers without support
+    for datasets to process the information.</p>
 </section>
 
 <section class="appendix informative">