diff --git a/cpu/cc2538/dev/flash-cca.h b/cpu/cc2538/dev/flash-cca.h
index a81bab702..2dff2978b 100644
--- a/cpu/cc2538/dev/flash-cca.h
+++ b/cpu/cc2538/dev/flash-cca.h
@@ -58,7 +58,6 @@
 #define FLASH_CCA_BOOTLDR_CFG_ACTIVE_HIGH       0x08000000 /**< Selected pin on pad A active high */
 #define FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_M      0x07000000 /**< Selected pin on pad A mask */
 #define FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_S      24         /**< Selected pin on pad A shift */
-#define FLASH_CCA_BOOTLDR_CFG_PORT_A_LEVEL_S    27         /**< Pin level shift */
 /** @} */
 /*---------------------------------------------------------------------------*/
 /** \name Image valid definitions
diff --git a/platform/cc2538dk/contiki-conf.h b/platform/cc2538dk/contiki-conf.h
index d86bd5e4d..558347f8b 100644
--- a/platform/cc2538dk/contiki-conf.h
+++ b/platform/cc2538dk/contiki-conf.h
@@ -53,8 +53,8 @@ typedef uint32_t rtimer_clock_t;
 #define FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN 3 /**< Pin PA_3 (Select button) activates the boot loader */
 #endif
 
-#ifndef FLASH_CCA_CONF_BOOTLDR_BACKDOOR_LEVEL
-#define FLASH_CCA_CONF_BOOTLDR_BACKDOOR_LEVEL 0 /**< A logic low level activates the boot loader */
+#ifndef FLASH_CCA_CONF_BOOTLDR_BACKDOOR_ACTIVE_HIGH
+#define FLASH_CCA_CONF_BOOTLDR_BACKDOOR_ACTIVE_HIGH 0 /**< A logic low level activates the boot loader */
 #endif
 /** @} */
 
diff --git a/platform/cc2538dk/startup-gcc.c b/platform/cc2538dk/startup-gcc.c
index d6a51812d..f87e1f178 100644
--- a/platform/cc2538dk/startup-gcc.c
+++ b/platform/cc2538dk/startup-gcc.c
@@ -67,8 +67,10 @@ void udma_err_isr(void);
 #if FLASH_CCA_CONF_BOOTLDR_BACKDOOR
 /* Backdoor enabled */
 
-#if ( (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_LEVEL < 0) || (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_LEVEL > 1) )
-#error Invalid boot loader backdoor pin level. Please set FLASH_CCA_CONF_BOOTLDR_BACKDOOR_LEVEL to 0 (logic low) or 1 (logic high).
+#if FLASH_CCA_CONF_BOOTLDR_BACKDOOR_ACTIVE_HIGH
+#define FLASH_CCA_BOOTLDR_CFG_ACTIVE_LEVEL FLASH_CCA_BOOTLDR_CFG_ACTIVE_HIGH
+#else
+#define FLASH_CCA_BOOTLDR_CFG_ACTIVE_LEVEL 0
 #endif
 
 #if ( (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN < 0) || (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN > 7) )
@@ -76,7 +78,7 @@ void udma_err_isr(void);
 #endif
 
 #define FLASH_CCA_BOOTLDR_CFG ( FLASH_CCA_BOOTLDR_CFG_ENABLE \
-  | (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_LEVEL << FLASH_CCA_BOOTLDR_CFG_PORT_A_LEVEL_S) \
+  | FLASH_CCA_BOOTLDR_CFG_ACTIVE_LEVEL \
   | (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN << FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_S) )
 #else
 #define FLASH_CCA_BOOTLDR_CFG FLASH_CCA_BOOTLDR_CFG_DISABLE