diff --git a/autoload/youcompleteme.vim b/autoload/youcompleteme.vim
index b3112293..20ff57f4 100644
--- a/autoload/youcompleteme.vim
+++ b/autoload/youcompleteme.vim
@@ -140,6 +140,9 @@ endfunction
 
 
 function! s:OnInsertLeave()
+  " TODO: Also, look at the current identifier under the cursor on InsertLeave
+  " and add it to the identifier database; this should catch the cases where the
+  " user slightly changes a variable name in-place
   let s:omnifunc_mode = 0
   call s:UpdateDiagnosticNotifications()
 endfunction