diff --git a/ci-scripts/conf_files/gnb.band78.nsa_2x2.106PRB.usrpn310.conf b/ci-scripts/conf_files/gnb.band78.nsa_2x2.106PRB.usrpn310.conf
index e7dbe4dd5f..640ec6830c 100644
--- a/ci-scripts/conf_files/gnb.band78.nsa_2x2.106PRB.usrpn310.conf
+++ b/ci-scripts/conf_files/gnb.band78.nsa_2x2.106PRB.usrpn310.conf
@@ -24,6 +24,7 @@ gNBs =
     pusch_AntennaPorts                                        = 2;
     pusch_TargetSNRx10                                        = 200;
     pucch_TargetSNRx10                                        = 200;
+    ul_prbblacklist                                           = "51,52,53,54"
 
     servingCellConfigCommon = (
     {