diff --git a/llvm/utils/vim/ftplugin/llvm.vim b/llvm/utils/vim/ftplugin/llvm.vim
index bdf49c92ff22b..55315159c18bc 100644
--- a/llvm/utils/vim/ftplugin/llvm.vim
+++ b/llvm/utils/vim/ftplugin/llvm.vim
@@ -10,3 +10,4 @@ let b:did_ftplugin = 1
 setlocal softtabstop=2 shiftwidth=2
 setlocal expandtab
 setlocal comments+=:;
+setlocal commentstring=;\ %s