diff --git a/openair1/SCHED_NR/phy_procedures_nr_gNB.c b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
index cc21dcd09e..61dd9f695b 100644
--- a/openair1/SCHED_NR/phy_procedures_nr_gNB.c
+++ b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
@@ -583,6 +583,20 @@ void fill_ul_rb_mask(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
     }
   }
 
+  for (int i=0;i<NUMBER_OF_NR_SRS_MAX;i++) {
+    NR_gNB_SRS_t *srs = gNB->srs[i];
+    if (srs) {
+      if ((srs->active == 1) && (srs->frame == frame_rx) && (srs->slot == slot_rx)) {
+        nfapi_nr_srs_pdu_t *srs_pdu = &srs->srs_pdu;
+        for(int symbol = 0; symbol<(1<<srs_pdu->num_symbols); symbol++) {
+          for(rb = srs_pdu->bwp_start; rb < (srs_pdu->bwp_start+srs_pdu->bwp_size); rb++) {
+            gNB->rb_mask_ul[gNB->frame_parms.symbols_per_slot-srs_pdu->time_start_position-1+symbol][rb>>5] |= 1<<(rb&31);
+          }
+        }
+      }
+    }
+  }
+
 }
 
 void phy_procedures_gNB_common_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {