diff --git a/arch/platform/cc2538dk/contiki-conf.h b/arch/platform/cc2538dk/contiki-conf.h
index 034ad4198..0c956efff 100644
--- a/arch/platform/cc2538dk/contiki-conf.h
+++ b/arch/platform/cc2538dk/contiki-conf.h
@@ -178,10 +178,6 @@ typedef uint32_t rtimer_clock_t;
                                            the uart1_* API */
 #endif
 
-/* Turn off example-provided putchars */
-#define SLIP_BRIDGE_CONF_NO_PUTCHAR 1
-#define SLIP_RADIO_CONF_NO_PUTCHAR  1
-
 #ifndef SLIP_ARCH_CONF_ENABLED
 /*
  * Determine whether we need SLIP
diff --git a/arch/platform/cooja/contiki-conf.h b/arch/platform/cooja/contiki-conf.h
index 44fe407f1..638297730 100644
--- a/arch/platform/cooja/contiki-conf.h
+++ b/arch/platform/cooja/contiki-conf.h
@@ -132,10 +132,6 @@ typedef uint64_t rtimer_clock_t;
 #define TSCH_CONF_MAX_EB_PERIOD (4 * CLOCK_SECOND)
 #endif /* MAC_CONF_WITH_TSCH */
 
-/* Turn off example-provided putchars */
-#define SLIP_BRIDGE_CONF_NO_PUTCHAR 1
-
-
 #define CFS_CONF_OFFSET_TYPE	long
 
 #define RF_CHANNEL                     26
diff --git a/arch/platform/openmote-cc2538/contiki-conf.h b/arch/platform/openmote-cc2538/contiki-conf.h
index 4e56dacff..8458afbc9 100644
--- a/arch/platform/openmote-cc2538/contiki-conf.h
+++ b/arch/platform/openmote-cc2538/contiki-conf.h
@@ -227,10 +227,6 @@ typedef uint32_t rtimer_clock_t;
                                            the uart1_* API */
 #endif
 
-/* Turn off example-provided putchars */
-#define SLIP_BRIDGE_CONF_NO_PUTCHAR 1
-#define SLIP_RADIO_CONF_NO_PUTCHAR  1
-
 #ifndef SLIP_ARCH_CONF_ENABLED
 /*
  * Determine whether we need SLIP
diff --git a/arch/platform/srf06-cc26xx/contiki-conf.h b/arch/platform/srf06-cc26xx/contiki-conf.h
index bcf4f100f..3c7430c6c 100644
--- a/arch/platform/srf06-cc26xx/contiki-conf.h
+++ b/arch/platform/srf06-cc26xx/contiki-conf.h
@@ -165,10 +165,6 @@
 #define BOARD_CONF_DEBUGGER_DEVPACK        1
 #endif
 
-/* Turn off example-provided putchars */
-#define SLIP_BRIDGE_CONF_NO_PUTCHAR        1
-#define SLIP_RADIO_CONF_NO_PUTCHAR         1
-
 #ifndef SLIP_ARCH_CONF_ENABLED
 /*
  * Determine whether we need SLIP
diff --git a/arch/platform/zoul/contiki-conf.h b/arch/platform/zoul/contiki-conf.h
index bb98ddd10..42f6661e1 100644
--- a/arch/platform/zoul/contiki-conf.h
+++ b/arch/platform/zoul/contiki-conf.h
@@ -224,10 +224,6 @@ typedef uint32_t rtimer_clock_t;
                                            the uart1_* API */
 #endif
 
-/* Turn off example-provided putchars */
-#define SLIP_BRIDGE_CONF_NO_PUTCHAR 1
-#define SLIP_RADIO_CONF_NO_PUTCHAR  1
-
 #ifndef SLIP_ARCH_CONF_ENABLED
 /*
  * Determine whether we need SLIP