diff --git a/scripts/subinstallers/wireguard.sh b/scripts/subinstallers/wireguard.sh
index 49b1b76..93b2490 100755
--- a/scripts/subinstallers/wireguard.sh
+++ b/scripts/subinstallers/wireguard.sh
@@ -3,7 +3,7 @@
 figlet "Mistborn: Installing Wireguard"
 
 # if wireguard not in current repositories
-if [ $(sudo apt-cache show wireguard > /dev/null 2>&1) -ne 0 ]; then
+if ! $(sudo apt-cache show wireguard > /dev/null 2>&1) ; then
     # install PPAs
 
     echo "Adding Wireguard PPAs"