diff --git a/targets/TARGET_NXP/TARGET_LPC15XX/can_api.c b/targets/TARGET_NXP/TARGET_LPC15XX/can_api.c
index bb922b5cec..922032998d 100644
--- a/targets/TARGET_NXP/TARGET_LPC15XX/can_api.c
+++ b/targets/TARGET_NXP/TARGET_LPC15XX/can_api.c
@@ -649,8 +649,8 @@ int can_read(can_t *obj, CAN_Message *msg, int handle) {
 
         if (LPC_C_CAN0->CANIF2_ARB2 & CANIFn_ARB2_XTD) {
             msg->format = CANExtended;
-            msg->id = (LPC_C_CAN0->CANIF2_ARB1 & 0x1FFF) << 16;
-            msg->id |= (LPC_C_CAN0->CANIF2_ARB2 & 0x1FFF);
+            msg->id = (LPC_C_CAN0->CANIF2_ARB2 & 0x1FFF) << 16;
+            msg->id |= (LPC_C_CAN0->CANIF2_ARB1 & 0xFFFF);
         } else {
             msg->format = CANStandard;
             msg->id = (LPC_C_CAN0->CANIF2_ARB2 & 0x1FFF) >> 2;