diff --git a/packages/ws-relay/src/index.ts b/packages/ws-relay/src/index.ts
index 6608520..ea89696 100644
--- a/packages/ws-relay/src/index.ts
+++ b/packages/ws-relay/src/index.ts
@@ -352,13 +352,15 @@ export function boot(ds = Dataspace.local, debug: boolean = false, WebSocketCons
                         "observer": create assertionFacetObserver(e => {
                             const response = G.toResolved(e);
                             if (!response) return;
-                            switch (response._variant) {
-                                case "accepted":
-                                    assert Answer(q, resultOk(response.responderSession));
-                                    break;
-                                case "Rejected":
-                                    assert Answer(q, resultError(response.value.detail));
-                                    break;
+                            at ds {
+                                switch (response._variant) {
+                                    case "accepted":
+                                        assert Answer(q, resultOk(response.responderSession));
+                                        break;
+                                    case "Rejected":
+                                        assert Answer(q, resultError(response.value.detail));
+                                        break;
+                                }
                             }
                         }),
                     });