diff --git a/dotfiles/picom.conf b/dotfiles/picom.conf
index 64232c3..80c6486 100644
--- a/dotfiles/picom.conf
+++ b/dotfiles/picom.conf
@@ -20,6 +20,7 @@ opacity-rule = [
   "100:class_g = 'Rofi'",
   "100:class_g = 'mpv'",
   "100:class_g = 'Xss-dimmer'",
+  "100:class_g = 'scummvm'",
   "100:window_type = 'dock'",
   "100:window_type = 'utility'",
   "95:window_type = 'combo'",