diff --git a/arch/platform/cc2538dk/contiki-conf.h b/arch/platform/cc2538dk/contiki-conf.h
index 034ad419897017d06a6c469640e4f162bd3b6b88..0c956efff7ba0e6f9d5c694ab792663c8250c12c 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 44fe407f158a3cc0e454c8ef33824dff65de5ffe..638297730602d1ebf92b36fef103c5f44ceaacd4 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 4e56dacff94d635968d9bcaa4c072d301f22978d..8458afbc9d81b5babbac6de9c8777496bf27fe10 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 bcf4f100fa4621b7066fda7957fcb4691f313828..3c7430c6ce6239bfb32df6aee6603cf311a861dd 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 bb98ddd109b62b9f43215088bbc03e361a4954f7..42f6661e1bf9cb522512b9879b1122f680cadb60 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