diff --git a/modules/mesh-build-go/cmd/mesh-build-go/test_real_integration_test.go b/modules/mesh-build-go/cmd/mesh-build-go/test_real_integration_test.go
index f6bdf6a4..60c2aac7 100644
--- a/modules/mesh-build-go/cmd/mesh-build-go/test_real_integration_test.go
+++ b/modules/mesh-build-go/cmd/mesh-build-go/test_real_integration_test.go
@@ -143,6 +143,11 @@ func TestBuildTwiceGivesOneDigestAndOneExecutable(t *testing.T) {
 	if out, err := exec.Command("cp", "-r", filepath.Join("testdata", "repos", "build")+"/.", tree).CombinedOutput(); err != nil {
 		t.Fatalf("%v %s", err, out)
 	}
+	// The fixture's manifest is kept as module.json.fixture: a module.json below a module's own directory is taken
+	// for a module of the catalogue by the readers of a merge (issue 1527), so it is named module.json only here.
+	if err := os.Rename(filepath.Join(tree, "module.json.fixture"), filepath.Join(tree, "module.json")); err != nil {
+		t.Fatal(err)
+	}
 	home := t.TempDir()
 	m := &Module{Home: home, Work: work, Cache: t.TempDir()}
 	m.Run = StepRunner(home)
diff --git a/modules/mesh-build-go/cmd/mesh-build-go/testdata/repos/build/module.json b/modules/mesh-build-go/cmd/mesh-build-go/testdata/repos/build/module.json.fixture
similarity index 100%
rename from modules/mesh-build-go/cmd/mesh-build-go/testdata/repos/build/module.json
rename to modules/mesh-build-go/cmd/mesh-build-go/testdata/repos/build/module.json.fixture