fix typo in variable

Change-Id: Ie4d80a83a9e0ef89de3c347558af3ed0ae4b7e70
diff --git a/tests/Voltha_PODTests.robot b/tests/Voltha_PODTests.robot
index ec657d6..56b3ebe 100644
--- a/tests/Voltha_PODTests.robot
+++ b/tests/Voltha_PODTests.robot
@@ -81,7 +81,7 @@
     Check CLI Tools Configured
     ${onos_auth}=    Create List    karaf    karaf
     ${HEADERS}    Create Dictionary    Content-Type=application/json
-    Create Session    ONOS    http://${k8snode_ip}:${ONOS_REST_PORT}    auth=${ONOS_AUTH}
+    Create Session    ONOS    http://${k8s_node_ip}:${ONOS_REST_PORT}    auth=${ONOS_AUTH}
     Set Global Variable    ${export_kubeconfig}    export KUBECONFIG=${KUBERNETES_CONF}
     ${olt_ip}=    Evaluate    ${olts}[0].get("ip")
     ${olt_user}=    Evaluate    ${olts}[0].get("user")