diff --git a/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/README.md b/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/README.md
index 135226c0ee25..4d47f4728048 100644
--- a/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/README.md
+++ b/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/README.md
@@ -109,7 +109,7 @@ var app = builder.Build();
 Note that in the examples above, `UseAzureMonitor` is added to the `IServiceCollection` in the `Program.cs` file. You can also add it in the `ConfigureServices` method of your `Startup.cs` file.
 
 > **Note**
-  > Multiple calls to `AddOpenTelemetry.UseAzureMonitor()` will **NOT** result in multiple providers. Only a single `TracerProvider`, `MeterProvider` and `LoggerProvider` will be created in the target `IServiceCollection`. To establish multiple providers use the `Sdk.CreateTracerProviderBuilder()` and/or `Sdk.CreateMeterProviderBuilder()` and/or `LoggerFactory.CreateLogger` methods with the [Azure Monitor Exporter](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter) instead of using Azure Monitor Distro.
+  > Multiple calls to `AddOpenTelemetry.UseAzureMonitor()` will **NOT** result in multiple providers and will throw `System.NotSupportedException`. Only a single `TracerProvider`, `MeterProvider` and `LoggerProvider` can be created in the target `IServiceCollection`. To establish multiple providers use the `Sdk.CreateTracerProviderBuilder()` and/or `Sdk.CreateMeterProviderBuilder()` and/or `LoggerFactory.CreateLogger` methods with the [Azure Monitor Exporter](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter) instead of using Azure Monitor Distro.
 
 ### Authenticate the client