diff --git a/src/webserver_main.cpp b/src/webserver_main.cpp
index 901c180..a2da120 100644
--- a/src/webserver_main.cpp
+++ b/src/webserver_main.cpp
@@ -108,6 +108,10 @@
 
     redfish::RedfishService redfish(app);
 
+    // Keep the user role map hot in memory and
+    // track the changes using match object
+    crow::persistent_data::UserRoleMap::getInstance();
+
     app.run();
     io->run();