diff --git a/src/PSUSensor.cpp b/src/PSUSensor.cpp
index d5f1b23..e94d1c4 100644
--- a/src/PSUSensor.cpp
+++ b/src/PSUSensor.cpp
@@ -81,10 +81,14 @@
         thresholdInterfaceCritical = objectServer.add_interface(
             dbusPath, "xyz.openbmc_project.Sensor.Threshold.Critical");
     }
-    association = objectServer.add_interface(dbusPath, association::interface);
 
+    // This should be called before initializing association.
+    // createInventoryAssoc() does add more associations before doing
+    // register and initialize "Associations" property.
     setInitialProperties(conn);
 
+    association = objectServer.add_interface(dbusPath, association::interface);
+
     createInventoryAssoc(conn, association, configurationPath);
     setupRead();
 }
@@ -96,6 +100,7 @@
     objServer.remove_interface(sensorInterface);
     objServer.remove_interface(thresholdInterfaceWarning);
     objServer.remove_interface(thresholdInterfaceCritical);
+    objServer.remove_interface(association);
 }
 
 void PSUSensor::setupRead(void)