diff --git a/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL25Z/PeripheralPins.c b/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL25Z/PeripheralPins.c
index a6ac2855df..86e0556ea6 100644
--- a/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL25Z/PeripheralPins.c
+++ b/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL25Z/PeripheralPins.c
@@ -19,7 +19,7 @@
 
 /************RTC***************/
 const PinMap PinMap_RTC[] = {
-    {PTC1, RTC_CLKIN, 2},
+    {PTC1, RTC_CLKIN, 1},
 };
 
 /************ADC***************/
diff --git a/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL46Z/PeripheralPins.c b/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL46Z/PeripheralPins.c
index 362b0e2f02..569f40c82c 100644
--- a/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL46Z/PeripheralPins.c
+++ b/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL46Z/PeripheralPins.c
@@ -18,7 +18,7 @@
 
 /************RTC***************/
 const PinMap PinMap_RTC[] = {
-    {PTC1, RTC_CLKIN, 2},
+    {PTC1, RTC_CLKIN, 1},
 };
 
 /************ADC***************/