diff --git a/jsonschema-core.xml b/jsonschema-core.xml
index 893af5ae..2d411647 100644
--- a/jsonschema-core.xml
+++ b/jsonschema-core.xml
@@ -999,7 +999,8 @@
                 schemas is a concern.
 
                 Implementations MUST NOT take any other action based on the presence, absence,
-                or contents of "$comment" properties.
+                or contents of "$comment" properties.  In particular, the value of "$comment"
+                MUST NOT be collected as an annotation result.
             </t>
         </section>