diff --git a/modules/mesh-build-go/cmd/mesh-build-go/asks_integration_test.go b/modules/mesh-build-go/cmd/mesh-build-go/asks_integration_test.go
index 1d185ceb..aab652b0 100644
--- a/modules/mesh-build-go/cmd/mesh-build-go/asks_integration_test.go
+++ b/modules/mesh-build-go/cmd/mesh-build-go/asks_integration_test.go
@@ -4,7 +4,6 @@ package main
 
 import (
 	"context"
-	"os"
 	"sync"
 	"testing"
 	"time"
@@ -14,16 +13,18 @@ import (
 
 	"git.novox.be/novox/mesh-sdk/go/buildstep"
 	"git.novox.be/novox/mesh-sdk/go/delivery"
+	"git.novox.be/novox/mesh-sdk/go/testbus"
 )
 
 // 1887/AC-order, 1887/AC-pull against the real bus: a check ask published before a delivery ask runs after it, and at
 // capacity 1 the second waits in the stream until the first ends.
+//
+// **A bus of its own.** The integration level runs every directory's tests at once on one bus, and this test names the
+// build seat's stream and its fixed workers (SEAT_NODE_BUILD_GO and its workers) and deletes the stream at its end, so
+// anything else on that bus, a puller or a leftover consumer, could hold or take its delivery ask and let the check
+// ask run first. It starts from testbus (mesh-sdk, novox/hq ADR 0495 clause 5): a bus for this test alone, gone after it.
 func TestTheModuleTakesADeliveryAskBeforeAnEarlierCheck(t *testing.T) {
-	url := os.Getenv("MESH_TEST_NATS")
-	if url == "" {
-		t.Skip("MESH_TEST_NATS names no bus: the integration level starts one")
-	}
-	nc, err := nats.Connect(url)
+	nc, err := nats.Connect(testbus.URL(t))
 	if err != nil {
 		t.Fatal(err)
 	}