diff --git a/yasnippet.el b/yasnippet.el
index d5aa6eb..35b4887 100644
--- a/yasnippet.el
+++ b/yasnippet.el
@@ -854,6 +854,7 @@ which decides on the snippet to expand.")
                                              'fundamental-mode)
                                         ,(let ((alias (symbol-function mode)))
                                            (when (symbolp alias) alias))
+                                        ,@(get mode 'derived-mode-extra-parents)
                                         ,@(gethash mode yas--parents)))))))))
           (dolist (parent all-parents)
             (cl-pushnew mode (get parent 'yas--cached-children)))