diff --git a/src/BootstrapBlazor.Server/Components/Samples/OtpServices.razor b/src/BootstrapBlazor.Server/Components/Samples/OtpServices.razor
index 06c27bb5285..47ddbc9300d 100644
--- a/src/BootstrapBlazor.Server/Components/Samples/OtpServices.razor
+++ b/src/BootstrapBlazor.Server/Components/Samples/OtpServices.razor
@@ -40,6 +40,8 @@
 
 <p class="code-label mt-3">1. 服务注入</p>
 
+<Pre>services.AddBootstrapBlazorTotpService();</Pre>
+
 <Pre>[Inject]
 [NotNull]
 private ITotpService? TotpService { get; set; }</Pre>