diff --git a/runtime/ftplugin/tcl.vim b/runtime/ftplugin/tcl.vim
index fa90009..214d9c2 100644
--- a/runtime/ftplugin/tcl.vim
+++ b/runtime/ftplugin/tcl.vim
@@ -3,6 +3,7 @@
 " Maintainer:       Robert L Hicks <sigzero@gmail.com>
 " Latest Revision:  2009-05-01
 "                   2024 Jan 14 by Vim Project (browsefilter)
+"                   2024 May 23 by Riley Bruins <ribru17@gmail.com> ('commentstring')
 
 if exists("b:did_ftplugin")
   finish
@@ -15,7 +16,7 @@
 set cpo-=C
 
 setlocal comments=:#
-setlocal commentstring=#%s
+setlocal commentstring=#\ %s
 setlocal formatoptions+=croql
 
 " Change the browse dialog on Windows to show mainly Tcl-related files