diff --git a/qemu/launchers/kvm b/qemu/launchers/kvm
index 45e90be..e9b4218 100755
--- a/qemu/launchers/kvm
+++ b/qemu/launchers/kvm
@@ -13,7 +13,7 @@ esac
 [ -z "$QEMUSH_NPROC" ] && QEMUSH_NPROC=$(($(nproc) / 2))
 
 # How much RAM to use
-[ -z "$QEMUSH_RAM" ] && QEMUSH_RAM=$(($(free | grep '^Mem:\s' | awk '{ print $NF }') / 2))K
+[ -z "$QEMUSH_RAM" ] && QEMUSH_RAM=$(($(grep '^MemAvailable:\s' /proc/meminfo | awk '{ print $2 }') / 2))K
 
 # Use selected QEMUSH_MACHINE type if set
 [ -n "$QEMUSH_MACHINE" ] && set -- -M "$QEMUSH_MACHINE" "$@"