diff --git a/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py b/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
index 38dbaf6..9c73c0c 100755
--- a/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
+++ b/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
@@ -101,7 +101,7 @@
         main.dynamicHosts = [ 'in1', 'out1' ]
         main.testSetUp.createApplyCell( main.Cluster, newCell=True, cellName=main.cellName,
                                         Mininet=main.Mininet1, useSSH=Testcaselib.useSSH,
-                                        ip=main.Cluster.getIps() )
+                                        ips=main.Cluster.getIps() )
         # kill off all onos processes
         main.log.info( "Safety check, killing all ONOS processes" +
                        " before initiating environment setup" )