diff --git a/lib/legacy/class.html b/lib/legacy/class.html
index 7506d2367b..ea8dfd835e 100644
--- a/lib/legacy/class.html
+++ b/lib/legacy/class.html
@@ -62,7 +62,7 @@
       if (superBehaviors) {
         behaviors = superBehaviors.concat(behaviors);
       }
-      // Set behaviors on the prototype to be compatible with 1.x
+      // Set behaviors on prototype for BC...
       klass.prototype.behaviors = behaviors;
       return klass;
     }