diff --git a/lug-helper.sh b/lug-helper.sh
index bec02f0..919730d 100755
--- a/lug-helper.sh
+++ b/lug-helper.sh
@@ -454,7 +454,7 @@ mapcount_once() {
 # Sets vm.max_map_count to persist between reboots
 mapcount_persist() {
     if [ -d "/etc/sysctl.d" ]; then
-        pkexec sh -c 'echo "vm.max_map_count = 16777216" >> /etc/sysctl.d/20-max_map_count.conf && sysctl -p'
+        pkexec sh -c 'echo "vm.max_map_count = 16777216" >> /etc/sysctl.d/20-max_map_count.conf && sysctl --system'
     else
         pkexec sh -c 'echo "vm.max_map_count = 16777216" >> /etc/sysctl.conf && sysctl -p'
     fi
@@ -465,7 +465,7 @@ mapcount_persist() {
 mapcount_manual() {
     if [ -d "/etc/sysctl.d" ]; then
         # Newer versions of sysctl
-        message info "To change the setting (a kernel parameter) until next boot, run:\n\nsudo sh -c 'sysctl -w vm.max_map_count=16777216'\n\n\nTo persist the setting between reboots, run:\n\nsudo sh -c 'echo \"vm.max_map_count = 16777216\" >> /etc/sysctl.d/20-max_map_count.conf && sysctl -p'"
+        message info "To change the setting (a kernel parameter) until next boot, run:\n\nsudo sh -c 'sysctl -w vm.max_map_count=16777216'\n\n\nTo persist the setting between reboots, run:\n\nsudo sh -c 'echo \"vm.max_map_count = 16777216\" >> /etc/sysctl.d/20-max_map_count.conf && sysctl --system'"
     else
         # Older versions of sysctl
         message info "To change the setting (a kernel parameter) until next boot, run:\n\nsudo sh -c 'sysctl -w vm.max_map_count=16777216'\n\n\nTo persist the setting between reboots, run:\n\nsudo sh -c 'echo \"vm.max_map_count = 16777216\" >> /etc/sysctl.conf && sysctl -p'"