diff --git a/configs/ez80f910200zco/nettest/defconfig b/configs/ez80f910200zco/nettest/defconfig
index be1b18a5763..9d3753bd636 100644
--- a/configs/ez80f910200zco/nettest/defconfig
+++ b/configs/ez80f910200zco/nettest/defconfig
@@ -603,7 +603,7 @@ CONFIG_EXAMPLE_UIP_WEBCLIENT=n
 #   client side of the test (may be target or host)
 CONFIG_EXAMPLE_NETTEST_SERVER=n
 CONFIG_EXAMPLE_NETTEST_PERFORMANCE=n
-CONFIG_EXAMPLE_NETTEST_NOMAC=n
+CONFIG_EXAMPLE_NETTEST_NOMAC=y
 CONFIG_EXAMPLE_NETTEST_IPADDR=(10<<24|0<<16|0<<8|2)
 CONFIG_EXAMPLE_NETTEST_DRIPADDR=(10<<24|0<<16|0<<8|1)
 CONFIG_EXAMPLE_NETTEST_NETMASK=(255<<24|255<<16|255<<8|0)