diff --git a/boards/px4/fmu-v6xrt/nuttx-config/nsh/defconfig b/boards/px4/fmu-v6xrt/nuttx-config/nsh/defconfig
index 4769e41b32..ed2ac79bdd 100644
--- a/boards/px4/fmu-v6xrt/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v6xrt/nuttx-config/nsh/defconfig
@@ -51,7 +51,7 @@ CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DEBUG_TCBINFO=y
 CONFIG_DEV_FIFO_SIZE=0
 CONFIG_DEV_PIPE_SIZE=70
-CONFIG_ETH0_PHY_LAN8742A=y
+CONFIG_ETH0_PHY_TJA1103=y
 CONFIG_FAT_DMAMEMORY=y
 CONFIG_FAT_LCNAMES=y
 CONFIG_FAT_LFN=y