diff --git a/daprdocs/content/en/developing-applications/building-blocks/workflow/workflow-patterns.md b/daprdocs/content/en/developing-applications/building-blocks/workflow/workflow-patterns.md
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@@ -293,6 +293,8 @@ tasks.
 
 It's possible to go further and limit the degree of concurrency using simple, language-specific constructs.
 
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 await context.CallActivityAsync("PostResults, sum);
 ```
 
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 ## Async HTTP APIs
 
 Asynchronous HTTP APIs are typically implemented using the [Asynchronous Request-Reply pattern](https://learn.microsoft.com/azure/architecture/patterns/async-request-reply). Implementing this pattern traditionally involves the following: