diff --git a/src/group.lisp b/src/group.lisp
index 8d580f0..039b0c8 100644
--- a/src/group.lisp
+++ b/src/group.lisp
@@ -23,7 +23,7 @@
          (gethash keyword ,p-name)))))
 
 (defgroup self-closing-tag
-  area base br col embed hr img input keygen
+  area base br col embed hr img input
   link meta param source track wbr)
 
 (defgroup non-escaping-tag