diff --git a/tests/Tests/Documentation/Usage/CrudExamplesTests.cs b/tests/Tests/Documentation/Usage/CrudExamplesTests.cs
index 032882c4c6b..6cbe5e87e47 100644
--- a/tests/Tests/Documentation/Usage/CrudExamplesTests.cs
+++ b/tests/Tests/Documentation/Usage/CrudExamplesTests.cs
@@ -56,7 +56,7 @@ public async Task IndexingADocument()
     Message = "Trying out the client, so far so good?"
 };
 
-var response = await client.IndexAsync(tweet, "my-tweet-index"); // <2>
+var response = await client.IndexAsync(tweet, (IndexName)"my-tweet-index"); // <2>
 
 if (response.IsValidResponse) // <3>
 {