diff --git a/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot b/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot
index 1a2ebf7..f17ec63 100755
--- a/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot
+++ b/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot
@@ -35,6 +35,7 @@
 
 *** Variables ***
 ${namespace}      voltha
+${INFRA_NAMESPACE}      default
 ${timeout}        300s
 ${of_id}          0
 ${logical_id}     0