diff --git a/tests/driver_enc28j60/Makefile b/tests/driver_enc28j60/Makefile
index 2628a8b292..d5e41d35c7 100644
--- a/tests/driver_enc28j60/Makefile
+++ b/tests/driver_enc28j60/Makefile
@@ -3,11 +3,10 @@ include ../Makefile.tests_common
 
 FEATURES_REQUIRED = periph_spi periph_gpio
 
-BOARD_INSUFFICIENT_MEMORY := msb-430 msb-430h nucleo32-f031 nucleo32-f042 \
-                             nucleo32-l031 nucleo-f334 nucleo-l053 \
-                             stm32f0discovery telosb wsn430-v1_3b wsn430-v1_4 z1
+BOARD_INSUFFICIENT_MEMORY := msb-430 msb-430h nucleo-f334 nucleo-l053 \
+                             nucleo32-f031 nucleo32-f042 nucleo32-l031 \
+                             stm32f0discovery telosb wsn430-v1_3b wsn430-v1_4
 
-USEMODULE += gnrc_netdev_default
 USEMODULE += auto_init_gnrc_netif
 USEMODULE += enc28j60
 USEMODULE += gnrc_ipv6_router_default
diff --git a/tests/driver_encx24j600/Makefile b/tests/driver_encx24j600/Makefile
index b5ce8a03da..a6b5d9ca32 100644
--- a/tests/driver_encx24j600/Makefile
+++ b/tests/driver_encx24j600/Makefile
@@ -3,11 +3,10 @@ include ../Makefile.tests_common
 
 FEATURES_REQUIRED = periph_spi periph_gpio
 
-BOARD_INSUFFICIENT_MEMORY := msb-430 msb-430h nucleo32-f031 nucleo32-f042 \
-                             nucleo32-l031 nucleo-l053 stm32f0discovery telosb \
-                             wsn430-v1_3b wsn430-v1_4 z1
+BOARD_INSUFFICIENT_MEMORY := nucleo-l053 nucleo32-f031 nucleo32-f042 \
+                             nucleo32-l031 stm32f0discovery telosb \
+                             wsn430-v1_3b wsn430-v1_4
 
-USEMODULE += gnrc_netdev_default
 USEMODULE += auto_init_gnrc_netif
 USEMODULE += encx24j600
 USEMODULE += gnrc_ipv6_router_default