diff --git a/configs/lpc4357-evb/include/board.h b/configs/lpc4357-evb/include/board.h
index e882a103e9e..c396b0c71a1 100644
--- a/configs/lpc4357-evb/include/board.h
+++ b/configs/lpc4357-evb/include/board.h
@@ -271,13 +271,13 @@
 #define PINCONF_U1_TXD  PINCONF_U1_TXD_1
 #define PINCONF_U1_RXD  PINCONF_U1_RXD_1
 
-#define PINCONF_U2_TXD  PINCONF_U2_TXD_1
-#define PINCONF_U2_RXD  PINCONF_U2_RXD_1
-#define PINCONF_U2_DIR  PINCONF_U2_DIR_1
+#define PINCONF_U2_TXD  PINCONF_U2_TXD_3
+#define PINCONF_U2_RXD  PINCONF_U2_RXD_3
+#define PINCONF_U2_DIR  PINCONF_U2_DIR_2
 
-#define PINCONF_U3_TXD  PINCONF_U3_TXD_2
-#define PINCONF_U3_RXD  PINCONF_U3_RXD_2
-#define PINCONF_U3_DIR  PINCONF_U3_DIR_2
+#define PINCONF_U3_TXD  PINCONF_U3_TXD_4
+#define PINCONF_U3_RXD  PINCONF_U3_RXD_4
+#define PINCONF_U3_DIR  PINCONF_U3_DIR_3
 
 /****************************************************************************
  * Public Types