diff --git a/ros-progs-gui.sh b/ros-progs-gui.sh
index 96d724b..3fcb48f 100755
--- a/ros-progs-gui.sh
+++ b/ros-progs-gui.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 
-#fos
+sudo pacman-key --recv-key 3056513887B78AEB --keyserver keyserver.ubuntu.com
+sudo pacman-key --lsign-key 3056513887B78AEB
+sudo pacman -U 'https://cdn-mirror.chaotic.cx/chaotic-aur/chaotic-keyring.pkg.tar.zst' 'https://cdn-mirror.chaotic.cx/chaotic-aur/chaotic-mirrorlist.pkg.tar.zst' --noconfirm
 
 # ROS Telepito szamlalo by Marci
 APP_DIR="/home/$USER/.local/share/applications"