diff --git a/lib/src/phy/ch_estimation/chest_dl.c b/lib/src/phy/ch_estimation/chest_dl.c
index b10ab2f24..be115354b 100644
--- a/lib/src/phy/ch_estimation/chest_dl.c
+++ b/lib/src/phy/ch_estimation/chest_dl.c
@@ -919,7 +919,7 @@ static float get_rsrp_neighbour_port(srsran_chest_dl_t* q, uint32_t port)
 static float get_rsrp(srsran_chest_dl_t* q)
 {
   float max = -1e9;
-  for (int i = 0; i < q->nof_rx_antennas; ++i) {
+  for (int i = 0; i < q->cell.nof_ports; ++i) {
     float v = get_rsrp_port(q, i);
     if (v > max) {
       max = v;