diff --git a/ct/authelia.sh b/ct/authelia.sh
index 11844437..7ca56b85 100644
--- a/ct/authelia.sh
+++ b/ct/authelia.sh
@@ -36,10 +36,10 @@ function update_script() {
         msg_info "Updating $APP to ${RELEASE}"
         $STD apt-get update &>/dev/null
         $STD apt-get -y upgrade &>/dev/null
-        wget -q https://github.com/authelia/authelia/releases/download/$RELEASE/authelia_$RELEASE_amd64.deb
-        $STD dpkg -i authelia_$RELEASE_amd64.deb
+        wget -q "https://github.com/authelia/authelia/releases/download/${RELEASE}/authelia_${RELEASE}_amd64.deb"
+        $STD dpkg -i "authelia_${RELEASE}_amd64.deb"
         msg_info "Cleaning Up"
-        rm -f authelia_$RELEASE_amd64.deb
+        rm -f "authelia_${RELEASE}_amd64.deb"
         $STD apt-get -y autoremove
         $STD apt-get -y autoclean
         msg_ok "Cleanup Completed"
diff --git a/install/authelia-install.sh b/install/authelia-install.sh
index 941f2fec..84196856 100644
--- a/install/authelia-install.sh
+++ b/install/authelia-install.sh
@@ -25,8 +25,8 @@ msg_ok "Installed Dependencies"
 
 msg_info "Installing Authelia"
 RELEASE=$(curl -s https://api.github.com/repos/authelia/authelia/releases/latest | grep "tag_name" | awk '{print substr($2, 2, length($2)-3) }')
-wget -q https://github.com/authelia/authelia/releases/download/$RELEASE/authelia_$RELEASE_amd64.deb
-$STD dpkg -i authelia_$RELEASE_amd64.deb
+wget -q "https://github.com/authelia/authelia/releases/download/${RELEASE}/authelia_${RELEASE}_amd64.deb"
+$STD dpkg -i "authelia_${RELEASE}_amd64.deb"
 $STD systemctl enable authelia
 msg_ok "Install Authelia completed"
 
@@ -87,7 +87,7 @@ customize
 
 # Cleanup
 msg_info "Cleaning up"
-rm -f authelia_$RELEASE_amd64.deb
+rm -f "authelia_${RELEASE}_amd64.deb"
 $STD apt-get -y autoremove
 $STD apt-get -y autoclean
 msg_ok "Cleaned"