diff --git a/elements/ironic-discoverd-ramdisk/init.d/80-ironic-discoverd-ramdisk b/elements/ironic-discoverd-ramdisk/init.d/80-ironic-discoverd-ramdisk
index ab9bca3d0..2e98d181b 100644
--- a/elements/ironic-discoverd-ramdisk/init.d/80-ironic-discoverd-ramdisk
+++ b/elements/ironic-discoverd-ramdisk/init.d/80-ironic-discoverd-ramdisk
@@ -44,7 +44,7 @@ CPU_ARCH=$(lscpu | grep Architecture | awk '{ print $2 }')
 update ".cpu_arch = \"$CPU_ARCH\""
 
 RAM=0
-for i in $(dmidecode --type memory | awk '($0~/Size/ && $2~/[0-9]/) {($3~/GB/) ? size=$2*1024 : size=$2; {print size;}}')
+for i in $(dmidecode --type memory | grep Size | awk '{ print $2; }' | grep -E '[0-9]+');
 do
     RAM=$(( RAM + $i ));
 done