diff --git a/autoload/youcompleteme.vim b/autoload/youcompleteme.vim
index 007d6afc..3002e885 100644
--- a/autoload/youcompleteme.vim
+++ b/autoload/youcompleteme.vim
@@ -367,7 +367,7 @@ function! s:OnCursorMovedInsertMode()
     call s:ClosePreviewWindowIfNeeded()
   endif
 
-  if g:ycm_auto_trigger
+  if g:ycm_auto_trigger || s:omnifunc_mode
     call s:InvokeCompletion()
   endif
 endfunction