diff --git a/nagios/templates/common-nrpe.cfg.j2 b/nagios/templates/common-nrpe.cfg.j2
index 48fa5d83..0965f01a 100644
--- a/nagios/templates/common-nrpe.cfg.j2
+++ b/nagios/templates/common-nrpe.cfg.j2
@@ -2,7 +2,7 @@
 command[global_check_disk]={{ nagios_plugins_dir }}/check_disk -w {{ nagios_check_disk_w }}% -c {{ nagios_check_disk_c }}% -X tmpfs -X proc -X sysfs -X devpts -X dev -A -i /mnt/.*
 
 command[global_check_load]={{ nagios_plugins_dir }}/check_load {% if nagios_load_per_cpu %}-r{% endif %} -w {{ nagios_load_w }} -c {{ nagios_load_c }}
-command[global_check_memory]={{ nagios_plugins_dir }}/check_memory -u G -w 5% -c 1%
+command[global_check_memory]={{ nagios_plugins_dir }}/check_memory -u M -w 5% -c 1%
 command[global_check_swap]={{ nagios_plugins_dir }}/check_swap -w 20% -c 5%
 command[global_check_zombie_procs]={{ nagios_plugins_dir }}/check_procs -w 5 -c 10 -s Z
 command[global_check_total_procs]={{ nagios_plugins_dir }}/check_procs -w 800 -c 1000