diff --git a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/lp_ticker.c b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/lp_ticker.c
index e4f79853e7..57001798df 100644
--- a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/lp_ticker.c
+++ b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/lp_ticker.c
@@ -52,6 +52,7 @@ void lp_ticker_init(void)
         gptConfig.clockSource = kGPT_ClockSource_LowFreq;
         gptConfig.enableFreeRun = true;
         gptConfig.enableMode = false;
+        gptConfig.enableRunInDoze = true;
 
         GPT_Init(GPT2, &gptConfig);
         GPT_EnableInterrupts(GPT2, kGPT_OutputCompare1InterruptEnable);
@@ -114,7 +115,8 @@ void lp_ticker_clear_interrupt(void)
 
 void lp_ticker_free(void)
 {
-
+    GPT_DisableInterrupts(GPT2, kGPT_OutputCompare1InterruptEnable);
+    NVIC_DisableIRQ(GPT2_IRQn);
 }
 
 #endif /* DEVICE_LPTICKER */