diff --git a/doc/_extensions/autojsdoc/parser/jsdoc.py b/doc/_extensions/autojsdoc/parser/jsdoc.py
index eb9d595330a..e6bd609f298 100644
--- a/doc/_extensions/autojsdoc/parser/jsdoc.py
+++ b/doc/_extensions/autojsdoc/parser/jsdoc.py
@@ -263,7 +263,8 @@ class ClassDoc(NSDoc):
         # FIXME: should ideally be a proxy namespace
         if method_name == 'prototype':
             return self
-        return super(ClassDoc, self).get_property(method_name)
+        return super(ClassDoc, self).get_property(method_name)\
+            or (self.superclass and self.superclass.get_property(method_name))
 
     @property
     def mixins(self):