diff --git a/contrib/fedora/nm-live-vm/run.sh b/contrib/fedora/nm-live-vm/run.sh
index d0f1ed2f28..189650b84f 100755
--- a/contrib/fedora/nm-live-vm/run.sh
+++ b/contrib/fedora/nm-live-vm/run.sh
@@ -10,6 +10,7 @@ fi
 
 DIR="$(dirname "$(readlink -f "$0")")"
 SDIR="$DIR/share"
+MEMORY=$((3*1024))
 
 mkdir "$SDIR"
 
@@ -21,7 +22,7 @@ if [ "$OS" == "Red Hat Enterprise Linux" ]; then
 
     PATH=$PATH:/usr/libexec
 
-    qemu-kvm -vnc :0 -m 2048 $NET_OPTIONS -kernel vmlinuz -append "video=1024x768 rootfstype=ramfs" -initrd initramfs.img &
+    qemu-kvm -vnc :0 -m $MEMORY $NET_OPTIONS -kernel vmlinuz -append "video=1024x768 rootfstype=ramfs" -initrd initramfs.img &
 
     sleep 1
     vncviewer localhost
@@ -36,5 +37,5 @@ else
         QEMU="qemu-system-$ARCH -enable-kvm"
     }
 
-    $QEMU -m 2048 -net nic $NET_OPTIONS -drive "file=fat:rw:$SDIR,cache=none" -kernel vmlinuz -append "video=1024x768 rootfstype=ramfs" -initrd initramfs.img
+    $QEMU -m $MEMORY -net nic $NET_OPTIONS -drive "file=fat:rw:$SDIR,cache=none" -kernel vmlinuz -append "video=1024x768 rootfstype=ramfs" -initrd initramfs.img
 fi