diff --git a/src/track.h b/src/track.h
index e0db42a3..d8afe933 100644
--- a/src/track.h
+++ b/src/track.h
@@ -47,7 +47,7 @@ void tracking_channels_missed_update_error(u32 channels_mask);
 /* State management interface */
 bool tracker_channel_available(tracker_channel_id_t id, gnss_signal_t sid);
 bool tracker_channel_init(tracker_channel_id_t id, gnss_signal_t sid,
-                          u32 start_sample_count, float code_phase,
+                          u32 ref_sample_count, float code_phase,
                           float carrier_freq, float cn0_init, s8 elevation);
 bool tracker_channel_disable(tracker_channel_id_t id);