diff --git a/TestON/tests/USECASE/SegmentRouting/SRRouting/SRRouting.params.flex b/TestON/tests/USECASE/SegmentRouting/SRRouting/SRRouting.params.flex
index 5351709..1eb4d61 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRRouting/SRRouting.params.flex
+++ b/TestON/tests/USECASE/SegmentRouting/SRRouting/SRRouting.params.flex
@@ -16,7 +16,7 @@
         <useCommonTopo>True</useCommonTopo>
         <confName>flex</confName>
         <topology>hagg_fabric.py</topology>
-        <lib>routinglib.py,trellislib.py,trellis_fabric.py</lib>
+        <lib>routinglib.py,trellislib.py,trellis_fabric.py,stratum.py</lib>
         <conf>bgpdbgp1.conf,bgpdbgp2.conf,bgpdr1.conf,bgpdr2.conf,dhcpd6.conf,dhcpd.conf,zebradbgp1.conf,zebradbgp2.conf</conf>
         <trellisOar>/home/sdn/segmentrouting-oar-3.0.0-SNAPSHOT.oar</trellisOar>
         <t3Oar>/home/sdn/t3-app-3.0.0-SNAPSHOT.oar</t3Oar>