diff --git a/app/src/service/heart_wave_sample_service/heart_wave_sample_service.c b/app/src/service/heart_wave_sample_service/heart_wave_sample_service.c
index e478b95..3bdd4a0 100644
--- a/app/src/service/heart_wave_sample_service/heart_wave_sample_service.c
+++ b/app/src/service/heart_wave_sample_service/heart_wave_sample_service.c
@@ -37,7 +37,7 @@ void hwss_start_prepare_capture(void) {
   hwsd_pre_processer_init();
   hwsd_mgr_reset_buffer();
 
-  ads129x_start_capture(true);
+  ads129x_start_capture(false);
 }
 void hwss_start_capture(void) {
   m_start_capture_tp      = znordic_getpower_on_s();