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 e6fafd1ef2..a4452b202d 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
@@ -251,6 +251,7 @@ RUs = (
          eNB_instances  = [0];
          bf_weights = [0x00007fff, 0x00007fff];
          #clock_src = "external";
+         sf_extension = 0 
          sdr_addrs = "mgmt_addr=192.168.18.240,addr=192.168.10.2,second_addr=192.168.20.2,clock_source=internal,time_source=internal"
     }
 );  
diff --git a/ci-scripts/conf_files/gnb.band78.sa.fr1.106PRB.2x2.usrpn310.conf b/ci-scripts/conf_files/gnb.band78.sa.fr1.106PRB.2x2.usrpn310.conf
index b07b391c8e..c889ba2b89 100644
--- a/ci-scripts/conf_files/gnb.band78.sa.fr1.106PRB.2x2.usrpn310.conf
+++ b/ci-scripts/conf_files/gnb.band78.sa.fr1.106PRB.2x2.usrpn310.conf
@@ -288,7 +288,7 @@ RUs = (
          # bf_weights = [0x00007fff, 0x00000000, 0x00000000, 0x00007fff];
          ## beamforming 4x4 matrix:
          #bf_weights = [0x00007fff, 0x0000, 0x0000, 0x0000, 0x00000000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff];
-
+         sf_extension = 0
          sdr_addrs = "mgmt_addr=192.168.18.240,addr=192.168.10.2,second_addr=192.168.20.2,clock_source=internal,time_source=internal"
     }
 );