diff --git a/instrumentation/google.golang.org/grpc/otelgrpc/benchmark_test.go b/instrumentation/google.golang.org/grpc/otelgrpc/benchmark_test.go
index 4d9282397cb..544b28811c3 100644
--- a/instrumentation/google.golang.org/grpc/otelgrpc/benchmark_test.go
+++ b/instrumentation/google.golang.org/grpc/otelgrpc/benchmark_test.go
@@ -39,7 +39,7 @@ func benchmark(b *testing.B, cOpt []grpc.DialOption, sOpt []grpc.ServerOption) {
 	ctx := context.Background()
 	dial := func(context.Context, string) (net.Conn, error) { return l.Dial() }
 	conn, err := grpc.NewClient(
-		"bufnet",
+		"passthrough:bufnet",
 		append([]grpc.DialOption{
 			grpc.WithContextDialer(dial),
 			grpc.WithTransportCredentials(insecure.NewCredentials()),
diff --git a/instrumentation/google.golang.org/grpc/otelgrpc/test/grpc_test.go b/instrumentation/google.golang.org/grpc/otelgrpc/test/grpc_test.go
index 004b07085cf..991fad2efd6 100644
--- a/instrumentation/google.golang.org/grpc/otelgrpc/test/grpc_test.go
+++ b/instrumentation/google.golang.org/grpc/otelgrpc/test/grpc_test.go
@@ -50,13 +50,16 @@ func newGrpcTest(t testing.TB, listener net.Listener, cOpt []grpc.DialOption, sO
 
 	cOpt = append(cOpt, grpc.WithTransportCredentials(insecure.NewCredentials()))
 
+	dialAddr := listener.Addr().String()
+
 	if l, ok := listener.(interface{ Dial() (net.Conn, error) }); ok {
 		dial := func(context.Context, string) (net.Conn, error) { return l.Dial() }
 		cOpt = append(cOpt, grpc.WithContextDialer(dial))
+		dialAddr = "passthrough:" + dialAddr
 	}
 
 	conn, err := grpc.NewClient(
-		listener.Addr().String(),
+		dialAddr,
 		cOpt...,
 	)
 	require.NoError(t, err)
diff --git a/instrumentation/google.golang.org/grpc/otelgrpc/test/interceptor_test.go b/instrumentation/google.golang.org/grpc/otelgrpc/test/interceptor_test.go
index f264e470f28..937cf6ee2ab 100644
--- a/instrumentation/google.golang.org/grpc/otelgrpc/test/interceptor_test.go
+++ b/instrumentation/google.golang.org/grpc/otelgrpc/test/interceptor_test.go
@@ -69,7 +69,7 @@ func ctxDialer() func(context.Context, string) (net.Conn, error) {
 }
 
 func TestUnaryClientInterceptor(t *testing.T) {
-	clientConn, err := grpc.NewClient("fake:8906",
+	clientConn, err := grpc.NewClient("passthrough:fake",
 		grpc.WithContextDialer(ctxDialer()),
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 	)
@@ -375,7 +375,7 @@ func newMockClientStream(opts clientStreamOpts) *mockClientStream {
 
 func createInterceptedStreamClient(t *testing.T, method string, opts clientStreamOpts) (grpc.ClientStream, *tracetest.SpanRecorder) {
 	mockStream := newMockClientStream(opts)
-	clientConn, err := grpc.NewClient("fake:8906",
+	clientConn, err := grpc.NewClient("passthrough:fake",
 		grpc.WithContextDialer(ctxDialer()),
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 	)
@@ -626,7 +626,7 @@ func TestStreamClientInterceptorOnUnidirectionalClientServerStream(t *testing.T)
 func TestStreamClientInterceptorCancelContext(t *testing.T) {
 	defer goleak.VerifyNone(t)
 
-	clientConn, err := grpc.NewClient("fake:8906",
+	clientConn, err := grpc.NewClient("passthrough:fake",
 		grpc.WithContextDialer(ctxDialer()),
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 	)
@@ -687,7 +687,7 @@ func TestStreamClientInterceptorCancelContext(t *testing.T) {
 func TestStreamClientInterceptorWithError(t *testing.T) {
 	defer goleak.VerifyNone(t)
 
-	clientConn, err := grpc.NewClient("fake:8906",
+	clientConn, err := grpc.NewClient("passthrough:fake",
 		grpc.WithContextDialer(ctxDialer()),
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 	)