diff --git a/arch/arm/src/lpc11xx/Kconfig b/arch/arm/src/lpc11xx/Kconfig
index 5bab142af20..255273a3a2e 100644
--- a/arch/arm/src/lpc11xx/Kconfig
+++ b/arch/arm/src/lpc11xx/Kconfig
@@ -196,7 +196,7 @@ config CAN_TSEG2
 	---help---
 		The number of CAN time quanta in segment 2. Default: 7
 
-config CAN_SAM
+config LPC11_CAN_SAM
 	bool "CAN sampling"
 	default n
 	---help---
diff --git a/arch/arm/src/lpc17xx/Kconfig b/arch/arm/src/lpc17xx/Kconfig
index a24f900ad4a..fe97c0394ee 100644
--- a/arch/arm/src/lpc17xx/Kconfig
+++ b/arch/arm/src/lpc17xx/Kconfig
@@ -584,7 +584,7 @@ config CAN_TSEG2
 	---help---
 		The number of CAN time quanta in segment 2. Default: 7
 
-config CAN_SAM
+config LPC17_CAN_SAM
 	bool "CAN sampling"
 	default n
 	---help---
diff --git a/arch/arm/src/lpc17xx/lpc17_can.c b/arch/arm/src/lpc17xx/lpc17_can.c
index ffdba8d1aed..f122ffedef2 100644
--- a/arch/arm/src/lpc17xx/lpc17_can.c
+++ b/arch/arm/src/lpc17xx/lpc17_can.c
@@ -1188,7 +1188,7 @@ static int can_bittiming(struct up_dev_s *priv)
          ((ts2 - 1) << CAN_BTR_TSEG2_SHIFT) |
          ((sjw - 1) << CAN_BTR_SJW_SHIFT));
 
-#ifdef CONFIG_CAN_SAM
+#ifdef CONFIG_LPC17_CAN_SAM
   /* The bus is sampled 3 times (recommended for low to medium speed buses
    * to spikes on the bus-line).
    */