diff --git a/arch/arm/src/lpc17xx_40xx/lpc17_40_ethernet.c b/arch/arm/src/lpc17xx_40xx/lpc17_40_ethernet.c
index 000ebee58c..1150a3c904 100644
--- a/arch/arm/src/lpc17xx_40xx/lpc17_40_ethernet.c
+++ b/arch/arm/src/lpc17xx_40xx/lpc17_40_ethernet.c
@@ -2231,7 +2231,7 @@ static int lpc17_40_eth_ioctl(struct net_driver_s *dev, int cmd,
 #endif /* ifdef CONFIG_NETDEV_PHY_IOCTL */
 
       default:
-        nerr("ERROR: Unrecognized IOCTL command: %d\n", command);
+        nerr("ERROR: Unrecognized IOCTL command: %d\n", cmd);
         ret = -ENOTTY;  /* Special return value for this case */
         break;
     }