diff --git a/test/virt/dual/topology.dot.in b/test/virt/dual/topology.dot.in
index 66518144..004a7540 100644
--- a/test/virt/dual/topology.dot.in
+++ b/test/virt/dual/topology.dot.in
@@ -20,13 +20,15 @@ graph "dual" {
 	    label="{ <eth0> eth0 | <eth1> eth1 | <eth2> eth2 } | dut1 | { <eth3> eth3 | <eth4> eth4 | <eth5> eth5 }",
 	    pos="10,18!",
 	    kind="infix",
-	    qn_console=9001
-	];
+	    qn_console=9001,
+	    qn_mem="384M"
+];
         dut2 [
 	    label="{ <eth0> eth0 | <eth1> eth1 | <eth2> eth2 } | dut2 | { <eth3> eth3 | <eth4> eth4 | <eth5> eth5 }",
 	    pos="10,12!",
 	    kind="infix",
-	    qn_console=9002
+	    qn_console=9002,
+	    qn_mem="384M"
 	];
 
 	host:d1a -- dut1:eth0 [kind=mgmt]