diff --git a/syntax/cpp.vim b/syntax/cpp.vim
index 882c100..3047994 100644
--- a/syntax/cpp.vim
+++ b/syntax/cpp.vim
@@ -109,6 +109,7 @@ endif
 if !exists('cpp_no_function')
   " Match function expressions: expr<T>()
   "                             ^^^^
+  " TODO: change .* to a not be greedy
   syn match cppFunction '\h\w*\ze<.*>\s*(' display
 
   hi default link cppFunction Function