diff --git a/lxpanel/src/plugins/taskbar.c b/lxpanel/src/plugins/taskbar.c
index 68dfcee..23f6dbd 100644
--- a/lxpanel/src/plugins/taskbar.c
+++ b/lxpanel/src/plugins/taskbar.c
@@ -297,6 +297,7 @@ static void task_draw_label(Task * tk)
 {
     TaskClass * tc = tk->res_class;
     gboolean bold_style = (((tk->entered_state) || (tk->flash_state)) && (tk->tb->flat_button));
+    if (!tk->tb) return;
     if ((tk->tb->grouped_tasks) && (tc != NULL) && (tc->visible_task == tk) && (tc->visible_count > 1))
 	{
         char * label = g_strdup_printf("(%d) %s", tc->visible_count, tc->visible_name);