diff --git a/go/core/action_test.go b/go/core/action_test.go
index 5bf24b5a0..0c4451d06 100644
--- a/go/core/action_test.go
+++ b/go/core/action_test.go
@@ -114,17 +114,19 @@ func TestActionTracing(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+  provider := "test"
 	tc := tracing.NewTestOnlyTelemetryClient()
 	r.TracingState().WriteTelemetryImmediate(tc)
 	const actionName = "TestTracing-inc"
-	a := defineAction(r, "test", actionName, atype.Custom, nil, nil, inc)
+	a := defineAction(r, provider, actionName, atype.Custom, nil, nil, inc)
 	if _, err := a.Run(context.Background(), 3, nil); err != nil {
 		t.Fatal(err)
 	}
 	// The same trace store is used for all tests, so there might be several traces.
 	// Look for this one, which has a unique name.
+  fullActionName := provider + '/' + actionName
 	for _, td := range tc.Traces {
-		if td.DisplayName == actionName {
+		if td.DisplayName == fullActionName {
 			// Spot check: expect a single span.
 			if g, w := len(td.Spans), 1; g != w {
 				t.Errorf("got %d spans, want %d", g, w)