diff --git a/runtime/ftplugin/cgdbrc.vim b/runtime/ftplugin/cgdbrc.vim
index 46cf135..99f9702 100644
--- a/runtime/ftplugin/cgdbrc.vim
+++ b/runtime/ftplugin/cgdbrc.vim
@@ -3,6 +3,7 @@
 " Maintainer:           Wu, Zhenyu <wuzhenyu@ustc.edu>
 " Documentation:        https://cgdb.github.io/docs/Configuring-CGDB.html
 " Latest Revision:      2024-04-09
+"                       2024-05-23 by Riley Bruins <ribru17@gmail.com> ('commentstring')
 
 if exists('b:did_ftplugin')
   finish
@@ -14,7 +15,7 @@
 
 let b:undo_ftplugin = 'setl com< cms<'
 
-setlocal commentstring=#%s
+setlocal commentstring=#\ %s
 setlocal comments=:#
 
 let &cpoptions = s:save_cpoptions