diff --git a/src/common/tests/MockMessageBroker.py b/src/common/tests/MockMessageBroker.py
index 2eeea74cfc85fd360180c77a2d5b7387d2ef092f..27613a64d3f63a55276bb1c1f82fdb6c20a8e534 100644
--- a/src/common/tests/MockMessageBroker.py
+++ b/src/common/tests/MockMessageBroker.py
@@ -28,10 +28,6 @@ TOPIC_SERVICE    = 'service'
 TOPIC_SLICE      = 'slice'
 TOPIC_TOPOLOGY   = 'topology'
 
-TOPICS = {
-    TOPIC_CONNECTION, TOPIC_CONTEXT, TOPIC_DEVICE, TOPIC_LINK, TOPIC_POLICY, TOPIC_SERVICE, TOPIC_SLICE, TOPIC_TOPOLOGY
-}
-
 CONSUME_TIMEOUT = 0.5 # seconds
 
 class Message(NamedTuple):