diff --git a/impl/src/layer1/rx.c b/impl/src/layer1/rx.c
index 8c9e81a..0944088 100644
--- a/impl/src/layer1/rx.c
+++ b/impl/src/layer1/rx.c
@@ -88,7 +88,7 @@ static bool acquire_preamble(layer1_rx_t *rx, const float complex sample, bool d
 		rx->packet_debug_info.preamble_correlation_peak = abs_corr_out;
 
 		float phase_offset;
-		float mean_frequency_error = correlator_get_mean_frequency_deviation(&rx->preamble_correlator, FREQ_EST_L, &phase_offset);
+		float mean_frequency_error = correlator_get_mean_frequency_deviation(&rx->preamble_correlator, preamble_get_symbol_count(), &phase_offset);
 
 		LOG(LVL_DEBUG, "@%zu: Phase offset:                 %.6f rad", rx->sample_index, phase_offset);
 		LOG(LVL_DEBUG, "@%zu: Preamble frequency deviation: %.6f rad/symbol", rx->sample_index, mean_frequency_error);