diff --git a/source/common/http/conn_manager_impl.h b/source/common/http/conn_manager_impl.h
index b5cc6d0f75c4..384c18e4caff 100644
--- a/source/common/http/conn_manager_impl.h
+++ b/source/common/http/conn_manager_impl.h
@@ -497,8 +497,8 @@ class ConnectionManagerImpl : Logger::Loggable<Logger::Id::http>,
 
     void traceRequest();
 
-    // Updates the snapped_route_config_, if scope not found for the header, a
-    // *Route::NullConfigImpl* is returned.
+    // Updates the snapped_route_config_ (by reselecting scoped route configuration), if a scope is
+    // not found, snapped_route_config_ is set to Router::NullConfigImpl.
     void snapScopedRouteConfig();
 
     void refreshCachedRoute();