diff --git a/dotfiles/picom.conf b/dotfiles/picom.conf
index 6d634f3..c5cd429 100644
--- a/dotfiles/picom.conf
+++ b/dotfiles/picom.conf
@@ -6,7 +6,14 @@ use-ewmh-active-win = true;
 # Opacity rules (first rule match)
 # Cannot use override-redirect:
 #  https://github.com/yshui/picom/issues/625
+# _NET_WM_STATE rules can be replaced by a simpler alternative in the future:
+#  https://github.com/yshui/picom/pull/550
 opacity-rule = [
+  "0:_NET_WM_STATE@[0]:32a = '_NET_WM_STATE_HIDDEN'",
+  "0:_NET_WM_STATE@[1]:32a = '_NET_WM_STATE_HIDDEN'",
+  "0:_NET_WM_STATE@[2]:32a = '_NET_WM_STATE_HIDDEN'",
+  "0:_NET_WM_STATE@[3]:32a = '_NET_WM_STATE_HIDDEN'",
+  "0:_NET_WM_STATE@[4]:32a = '_NET_WM_STATE_HIDDEN'",
   "100:fullscreen",
   "100:name = 'Zoom Meeting'",
   "100:name = 'zoom_linux_float_video_window'",