diff --git a/repos/os/run/nic_router_flood.run b/repos/os/run/nic_router_flood.run
index d3cbc10e1..eb39a512f 100644
--- a/repos/os/run/nic_router_flood.run
+++ b/repos/os/run/nic_router_flood.run
@@ -6,6 +6,15 @@ if {![have_include power_on/qemu] ||
 	exit 0
 }
 
+proc test_timeout { } {
+	if {[have_spec sel4] && [have_spec x86]} {
+		return 240
+	}
+	if {[have_spec okl4] || [have_spec pistachio]} {
+		return 240
+	}
+	return 120
+}
 
 proc good_dst_ip { } { return "10.0.2.2" }
 proc bad_dst_ip  { } { return "10.0.0.123" }
@@ -152,4 +161,4 @@ append qemu_args " -nographic "
 append qemu_args " -netdev user,id=net0 "
 append qemu_args " -net nic,model=[qemu_nic_model],netdev=net0 "
 
-run_genode_until {.*ping\] 64 bytes from 10\.0\.2\.2: icmp_seq=30 .*\n} 120
\ No newline at end of file
+run_genode_until {.*ping\] 64 bytes from 10\.0\.2\.2: icmp_seq=30 .*\n} [test_timeout]