diff --git a/lib/wibox/widget/base.lua b/lib/wibox/widget/base.lua
index 2023f6e4..6e21e735 100644
--- a/lib/wibox/widget/base.lua
+++ b/lib/wibox/widget/base.lua
@@ -162,14 +162,16 @@ end
 -- forward the signal. This is useful to track signals when there is a dynamic
 -- set of containers and layouts wrapping the widget.
 --
--- Note that this function has two flaws:
+-- Note that this function has some flaws:
 --
 -- 1. The signal is only forwarded once the widget tree has been built. This
 --    happens after all currently scheduled functions have been executed.
 --    Therefore, it will not start to work right away.
 -- 2. In case the widget is present multiple times in a single widget tree,
---    this function will also forward the signal multiple time (one per upward
+--    this function will also forward the signal multiple times (once per upward
 --    tree path).
+-- 3. If the widget is removed from the widget tree, the signal is still
+--    forwarded for some time, similar to the first case.
 --
 -- @tparam string signal_name
 -- @param ... Other arguments