diff --git a/templates/sendmail-reboot.sh b/templates/sendmail-reboot.sh
index f06c064..0f9629a 100644
--- a/templates/sendmail-reboot.sh
+++ b/templates/sendmail-reboot.sh
@@ -61,7 +61,7 @@ fi
 MEM=$(grep /proc/meminfo \
     -e 'MemTotal' -e 'MemAvailable' -e 'MemFree' \
     -e 'SwapTotal' -e 'SwapFree' \
-    | numfmt --field 2 --from-unit=Ki --to=iec | sed 's/ kB//g')
+    | numfmt --field 2 --to=iec | sed 's/M/G/g' | sed 's/ kB//g')
 if [ -n "${MEM}" ]; then
 TXT_MSG=$(cat <<-END
 ${TXT_MSG}