diff --git a/extras/add_vpn_user.sh b/extras/add_vpn_user.sh
index 3925798..5606f7a 100755
--- a/extras/add_vpn_user.sh
+++ b/extras/add_vpn_user.sh
@@ -107,10 +107,10 @@ Setup VPN clients: https://git.io/vpnclients
 
 EOF
 
-printf "Do you want to continue? [y/N] "
+printf "Do you want to continue? [Y/n] "
 read -r response
 case $response in
-  [yY][eE][sS]|[yY])
+  [yY][eE][sS]|[yY]|'')
     echo
     echo "Adding or updating VPN user..."
     echo
diff --git a/extras/del_vpn_user.sh b/extras/del_vpn_user.sh
index e64a4a4..e0ac633 100755
--- a/extras/del_vpn_user.sh
+++ b/extras/del_vpn_user.sh
@@ -105,10 +105,10 @@ Username: $VPN_USER
 
 EOF
 
-printf "Do you want to continue? [y/N] "
+printf "Do you want to continue? [Y/n] "
 read -r response
 case $response in
-  [yY][eE][sS]|[yY])
+  [yY][eE][sS]|[yY]|'')
     echo
     echo "Deleting VPN user..."
     echo
diff --git a/extras/ikev2onlymode.sh b/extras/ikev2onlymode.sh
index ec2e567..22dcd11 100755
--- a/extras/ikev2onlymode.sh
+++ b/extras/ikev2onlymode.sh
@@ -26,11 +26,11 @@ abort_and_exit() {
   exit 1
 }
 
-confirm_or_abort() {
+continue_or_abort() {
   printf '%s' "$1"
   read -r response
   case $response in
-    [yY][eE][sS]|[yY])
+    [yY][eE][sS]|[yY]|'')
       echo
       ;;
     *)
@@ -95,7 +95,7 @@ Note: This option will disable IKEv2-only mode on this VPN server. With IKEv2-on
       IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes) in addition to IKEv2.
 
 EOF
-  confirm_or_abort "Do you want to continue? [y/N] "
+  continue_or_abort "Do you want to continue? [Y/n] "
 }
 
 confirm_enable_ikev2_only() {
@@ -107,7 +107,7 @@ Note: This option will enable IKEv2-only mode on this VPN server. With IKEv2-onl
       modes) will be dropped.
 
 EOF
-  confirm_or_abort "Do you want to continue? [y/N] "
+  continue_or_abort "Do you want to continue? [Y/n] "
 }
 
 toggle_ikev2_only() {
diff --git a/extras/update_vpn_users.sh b/extras/update_vpn_users.sh
index cd4364b..c744f57 100755
--- a/extras/update_vpn_users.sh
+++ b/extras/update_vpn_users.sh
@@ -127,10 +127,10 @@ Setup VPN clients: https://git.io/vpnclients
 
 EOF
 
-printf "Do you want to continue? [y/N] "
+printf "Do you want to continue? [Y/n] "
 read -r response
 case $response in
-  [yY][eE][sS]|[yY])
+  [yY][eE][sS]|[yY]|'')
     echo
     echo "Updating VPN users..."
     echo
diff --git a/extras/vpnupgrade_alpine.sh b/extras/vpnupgrade_alpine.sh
index 6a68647..17d4f83 100755
--- a/extras/vpnupgrade_alpine.sh
+++ b/extras/vpnupgrade_alpine.sh
@@ -123,10 +123,10 @@ Note: You already have Libreswan version $SWAN_VER installed!
 EOF
   fi
 
-  printf "Do you want to continue? [y/N] "
+  printf "Do you want to continue? [Y/n] "
   read -r response
   case $response in
-    [yY][eE][sS]|[yY])
+    [yY][eE][sS]|[yY]|'')
       echo
       ;;
     *)
diff --git a/extras/vpnupgrade_amzn.sh b/extras/vpnupgrade_amzn.sh
index b563e5e..de599ac 100755
--- a/extras/vpnupgrade_amzn.sh
+++ b/extras/vpnupgrade_amzn.sh
@@ -107,10 +107,10 @@ Note: You already have Libreswan version $SWAN_VER installed!
 EOF
   fi
 
-  printf "Do you want to continue? [y/N] "
+  printf "Do you want to continue? [Y/n] "
   read -r response
   case $response in
-    [yY][eE][sS]|[yY])
+    [yY][eE][sS]|[yY]|'')
       echo
       ;;
     *)
diff --git a/extras/vpnupgrade_centos.sh b/extras/vpnupgrade_centos.sh
index f6fa048..bf7f007 100755
--- a/extras/vpnupgrade_centos.sh
+++ b/extras/vpnupgrade_centos.sh
@@ -125,10 +125,10 @@ Note: You already have Libreswan version $SWAN_VER installed!
 EOF
   fi
 
-  printf "Do you want to continue? [y/N] "
+  printf "Do you want to continue? [Y/n] "
   read -r response
   case $response in
-    [yY][eE][sS]|[yY])
+    [yY][eE][sS]|[yY]|'')
       echo
       ;;
     *)
diff --git a/extras/vpnupgrade_ubuntu.sh b/extras/vpnupgrade_ubuntu.sh
index eec5a5d..4472da4 100755
--- a/extras/vpnupgrade_ubuntu.sh
+++ b/extras/vpnupgrade_ubuntu.sh
@@ -134,10 +134,10 @@ Note: You already have Libreswan version $SWAN_VER installed!
 EOF
   fi
 
-  printf "Do you want to continue? [y/N] "
+  printf "Do you want to continue? [Y/n] "
   read -r response
   case $response in
-    [yY][eE][sS]|[yY])
+    [yY][eE][sS]|[yY]|'')
       echo
       ;;
     *)