diff --git a/vpnsetup.sh b/vpnsetup.sh
index 749d856..e3db449 100644
--- a/vpnsetup.sh
+++ b/vpnsetup.sh
@@ -33,7 +33,7 @@ VPN_PASSWORD=your_very_secure_password
 # IMPORTANT: Be sure to read important notes at the URL below:
 # https://github.com/hwdsl2/setup-ipsec-vpn#important-notes
 
-if [ "$(lsb_release -si)" != "Ubuntu" ] && [ "$(lsb_release -si)" != "Debian" ]; then
+if [ "$(lsb_release -si 2>/dev/null)" != "Ubuntu" ] && [ "$(lsb_release -si 2>/dev/null)" != "Debian" ]; then
   echo "Looks like you aren't running this script on a Ubuntu or Debian system."
   exit 1
 fi
diff --git a/vpnupgrade_Libreswan.sh b/vpnupgrade_Libreswan.sh
index 8032b61..783d16f 100644
--- a/vpnupgrade_Libreswan.sh
+++ b/vpnupgrade_Libreswan.sh
@@ -13,7 +13,7 @@
 # Check https://libreswan.org and update version number if necessary
 SWAN_VER=3.16
 
-if [ "$(lsb_release -si)" != "Ubuntu" ] && [ "$(lsb_release -si)" != "Debian" ]; then
+if [ "$(lsb_release -si 2>/dev/null)" != "Ubuntu" ] && [ "$(lsb_release -si 2>/dev/null)" != "Debian" ]; then
   echo "Looks like you aren't running this script on a Ubuntu or Debian system."
   exit 1
 fi