diff --git a/Dockerfile b/Dockerfile
index b69899b..33adbd9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,7 @@ ENV SURFSHARK_USER=
 ENV SURFSHARK_PASSWORD=
 ENV SURFSHARK_COUNTRY=
 ENV SURFSHARK_CITY=
+ENV SURFSHARK_CONFIGS_ENDPOINT=https://my.surfshark.com/vpn/api/v1/server/configurations
 ENV OPENVPN_OPTS=
 ENV CONNECTION_TYPE=tcp
 ENV LAN_NETWORK=
diff --git a/README.md b/README.md
index 9932b89..1395c55 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ The container is configurable using different environment variables:
 |SURFSHARK_PASSWORD|Yes|Password provided by SurfShark|
 |SURFSHARK_COUNTRY|No|The country, supported by SurfShark, in which you want to connect|
 |SURFSHARK_CITY|No|The city of the country in which you want to connect|
+|SURFSHARK_CONFIGS_ENDPOINT|No|The endpoint to be used to read Surfshark's configuration zip|
 |OPENVPN_OPTS|No|Any additional options for OpenVPN|
 |CONNECTION_TYPE|No|The connection type that you want to use: tcp, udp|
 |LAN_NETWORK|No|Lan network used to access the web ui of attached containers. Can be comma seperated for multiple subnets Comment out or leave blank: example 192.168.0.0/24|
diff --git a/startup.sh b/startup.sh
index 39240ee..b3838dd 100644
--- a/startup.sh
+++ b/startup.sh
@@ -1,20 +1,20 @@
 #!/bin/sh
 rm -rf ovpn_configs*
 if [ -z "${OVPN_CONFIGS}" ]; then
-  wget -O ovpn_configs.zip https://my.surfshark.com/vpn/api/v1/server/configurations
   OVPN_CONFIGS=ovpn_configs.zip
+  wget -O ${OVPN_CONFIGS} "${SURFSHARK_CONFIGS_ENDPOINT}"
 fi
 unzip "${OVPN_CONFIGS}" -d ovpn_configs
 cd ovpn_configs
 VPN_FILE=$(ls *"${SURFSHARK_COUNTRY}"-* | grep "${SURFSHARK_CITY}" | grep "${CONNECTION_TYPE}" | shuf | head -n 1)
-echo Chose: ${VPN_FILE}
+echo Chose: "${VPN_FILE}"
 printf "${SURFSHARK_USER}\n${SURFSHARK_PASSWORD}" > vpn-auth.txt
 
-if [ -n ${LAN_NETWORK}  ]
+if [ -n "${LAN_NETWORK}"  ]
 then
     DEFAULT_GATEWAY=$(ip -4 route list 0/0 | cut -d ' ' -f 3)
 
-    splitSubnets=$(echo ${LAN_NETWORK} | tr "," "\n")
+    splitSubnets=$(echo "${LAN_NETWORK}" | tr "," "\n")
 
     for subnet in $splitSubnets
     do
@@ -46,7 +46,7 @@ if [ "${ENABLE_SOCKS_SERVER}" = "true" ]; then
   OPTIONAL_SOCKS_SCRIPT="--up /vpn/sockd.sh"
 fi
 
-openvpn --config $VPN_FILE --auth-user-pass vpn-auth.txt --mute-replay-warnings $OPENVPN_OPTS --script-security 2 ${OPTIONAL_SOCKS_SCRIPT}
+openvpn --config "$VPN_FILE" --auth-user-pass vpn-auth.txt --mute-replay-warnings "$OPENVPN_OPTS" --script-security 2 "${OPTIONAL_SOCKS_SCRIPT}"
 
 if [ "${ENABLE_KILL_SWITCH}" = "true" ]; then
   ufw reset