diff --git a/ftplugin/todo.vim b/ftplugin/todo.vim
index 55d9ccd..88d80b3 100644
--- a/ftplugin/todo.vim
+++ b/ftplugin/todo.vim
@@ -75,8 +75,7 @@ endfunction
 function! TodoTxtSortDue()
     :silent! %s/\(due:\d\{4}\)-\(\d\{2}\)-\(\d\{2}\)/\1\2\3/g
     :sort n /due:/
-    :silent! %s/\(due:\d\{4}\)/\1-/g
-    :silent! %s/\(due:\d\{4}-\d\{2}\)/\1-/g
+    :silent! %s/\(due:\d\{4}\)\(\d\{2}\)/\1-\2-/g
     " TODO: add time sorting (YYYY-MM-DD HH:MM)
 endfunction