diff --git a/autoload/tagbar.vim b/autoload/tagbar.vim
index 3307b9f..04cb72c 100644
--- a/autoload/tagbar.vim
+++ b/autoload/tagbar.vim
@@ -3805,6 +3805,7 @@ function! s:ExecuteCtags(ctags_cmd) abort
     if s:debug
         silent 5verbose let ctags_output = system(a:ctags_cmd)
         call s:debug(v:statusmsg)
+        call s:debug('Exit code: ' . v:shell_error)
         redraw!
     else
         silent let ctags_output = system(a:ctags_cmd)