diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
index fb10ccc..8450cdd 100644
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -909,6 +909,7 @@
 'tagrelative'	  'tr'	    file names in tag file are relative
 'tags'		  'tag'     list of file names used by the tag command
 'tagstack'	  'tgst'    push tags onto the tag stack
+'tcldll'		    name of the Tcl dynamic library
 'term'			    name of the terminal
 'termbidi'	  'tbidi'   terminal takes care of bi-directionality
 'termencoding'	  'tenc'    character encoding used by the terminal