diff --git a/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL43Z/PeripheralPins.c b/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL43Z/PeripheralPins.c
index 31bff4d723..03baff7c2e 100644
--- a/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL43Z/PeripheralPins.c
+++ b/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KLXX/TARGET_KL43Z/PeripheralPins.c
@@ -18,7 +18,7 @@
 
 /************RTC***************/
 const PinMap PinMap_RTC[] = {
-    {PTC1, RTC_CLKIN, 1},
+	{NC, OSC32KCLK, 0},
 };
 
 /************ADC***************/