diff --git a/src/NRF52840/AutoAnalogAudio.cpp b/src/NRF52840/AutoAnalogAudio.cpp
index 9b8828b..577b89e 100644
--- a/src/NRF52840/AutoAnalogAudio.cpp
+++ b/src/NRF52840/AutoAnalogAudio.cpp
@@ -191,7 +191,7 @@ void AutoAnalog::begin(bool enADC, bool enDAC){
   NRF_PWM0->ENABLE = (PWM_ENABLE_ENABLE_Enabled << PWM_ENABLE_ENABLE_Pos);
   NRF_PWM0->MODE = (PWM_MODE_UPDOWN_Up << PWM_MODE_UPDOWN_Pos);
   NRF_PWM0->PRESCALER = (PWM_PRESCALER_PRESCALER_DIV_1 << PWM_PRESCALER_PRESCALER_Pos);
-  NRF_PWM0->COUNTERTOP = (1000 << PWM_COUNTERTOP_COUNTERTOP_Pos); //1 msec
+  NRF_PWM0->COUNTERTOP = (1003 << PWM_COUNTERTOP_COUNTERTOP_Pos); //1 msec
   NRF_PWM0->LOOP = (1 << PWM_LOOP_CNT_Pos);
   NRF_PWM0->DECODER = (PWM_DECODER_LOAD_Common << PWM_DECODER_LOAD_Pos) | (PWM_DECODER_MODE_RefreshCount << PWM_DECODER_MODE_Pos);
   NRF_PWM0->SEQ[0].PTR = ((uint32_t)(&dacBuf0[0]) << PWM_SEQ_PTR_PTR_Pos);