diff --git a/hal/targets/hal/TARGET_NORDIC/TARGET_NRF5/TARGET_MCU_NRF51822/pwmout_api.c b/hal/targets/hal/TARGET_NORDIC/TARGET_NRF5/TARGET_MCU_NRF51822/pwmout_api.c
index a703c85fdb..2b4d27f3c6 100644
--- a/hal/targets/hal/TARGET_NORDIC/TARGET_NRF5/TARGET_MCU_NRF51822/pwmout_api.c
+++ b/hal/targets/hal/TARGET_NORDIC/TARGET_NRF5/TARGET_MCU_NRF51822/pwmout_api.c
@@ -160,7 +160,8 @@ void pwmout_write(pwmout_t *obj, float value)
     if (value > 1.0f) {
         value = 1.0f;
     }
-    uint16_t ticks = (uint16_t)((float)app_pwm_cycle_ticks_get(pwm->instance) * value);
+
+    app_pwm_channel_duty_set(pwm->instance, obj->pwm_channel, (app_pwm_duty_t)(value * 100.0f) );
 }
 
 float pwmout_read(pwmout_t *obj)