diff --git a/home-environments/radio/files/.config/river/init b/home-environments/radio/files/.config/river/init
index 7d17992..86b31e3 100755
--- a/home-environments/radio/files/.config/river/init
+++ b/home-environments/radio/files/.config/river/init
@@ -143,8 +143,8 @@ riverctl map normal Super e spawn "$TERMINAL -e $EDITOR"
 # file manager
 riverctl map normal Super d spawn "$TERMINAL -e lf"
 
-# $BROWSER
-riverctl map normal Super b spawn $BROWSER
+# btop
+riverctl map normal Super b spawn "$TERMINAL -e btop"
 
 # application launcher
 riverctl map normal Super Semicolon spawn fuzzel