diff --git a/boards/nxp/tropic-community/nuttx-config/include/board.h b/boards/nxp/tropic-community/nuttx-config/include/board.h
index 21ded1ea38..972a4aaab6 100644
--- a/boards/nxp/tropic-community/nuttx-config/include/board.h
+++ b/boards/nxp/tropic-community/nuttx-config/include/board.h
@@ -287,8 +287,8 @@
 
 /* AUX */
 
-#define GPIO_LPUART4_RX   (GPIO_LPUART4_RX_3 | LPUART_IOMUX) /* GPIO_B1_01 */
-#define GPIO_LPUART4_TX   (GPIO_LPUART4_TX_3 | LPUART_IOMUX) /* GPIO_B1_00 */
+#define GPIO_LPUART4_RX   (GPIO_LPUART4_RX_1 | LPUART_IOMUX) /* GPIO_B1_01 */
+#define GPIO_LPUART4_TX   (GPIO_LPUART4_TX_1 | LPUART_IOMUX) /* GPIO_B1_00 */
 
 /* GPS 1 */