diff --git a/after/syntax/c.vim b/after/syntax/c.vim
index f88aff4..2b209be 100644
--- a/after/syntax/c.vim
+++ b/after/syntax/c.vim
@@ -25,10 +25,13 @@ syn match cLabel '^\s*\w[A-Za-z0-9_]\+\ze::\@!' contains=cppAccess
 " Match Doxygen comments
 let g:c_doxygen = get(g:, 'c_doxygen', 1)
 if exists('g:c_doxygen') && g:c_doxygen
-  syn region cDoxygen oneline matchgroup=cComment start='\/\/\/\s*@brief\s\+' end='$'
-  syn region cDoxygen oneline matchgroup=cComment start='\/\/\/\s*@tparam\s\+' end='\(\s.*$\|$\)'
-  syn region cDoxygen oneline matchgroup=cComment start='\/\/\/\s*@param\(\[\(\|in\|out\|inout\)\]\)\=\s\+' end='\(\s.*$\|$\)'
+  syn region cDoxygen oneline matchgroup=cComment start='\/\/\/\s*[\\@]brief\s\+' end='$'
+  syn region cDoxygen oneline matchgroup=cComment start='\/\/\/\s*[\\@]tparam\s\+' end='\(\s.*$\|$\)'
+  syn region cDoxygen oneline matchgroup=cComment start='\/\/\/\s*[\\@]param\(\[\(\|in\|out\|inout\)\]\)\=\s\+' end='\(\s.*$\|$\)'
+  syn match cDoxygenTodo 'todo' contained
+  syn region cComment oneline start='\/\/\/\s*[\\@]\zetodo\s\+' end='$' contains=cDoxygenTodo
   hi default link cDoxygen SpecialComment
+  hi default link cDoxygenTodo Todo
 endif
 
 " Match curly braces with cDelimiter highlight group