diff --git a/tests/MongoDB.Driver.Tests/Search/AtlasSearchIndexManagmentTests.cs b/tests/MongoDB.Driver.Tests/Search/AtlasSearchIndexManagmentTests.cs
index 62b6465df66..423c8521cd6 100644
--- a/tests/MongoDB.Driver.Tests/Search/AtlasSearchIndexManagmentTests.cs
+++ b/tests/MongoDB.Driver.Tests/Search/AtlasSearchIndexManagmentTests.cs
@@ -253,7 +253,7 @@ public async Task Case8_driver_requires_explicit_type_to_create_vector_search_in
                 : Record.Exception(() => _collection.SearchIndexes.CreateOne(
                     new CreateSearchIndexModel(indexName, _vectorIndexDefinition).Definition, indexName));
 
-            exception.Message.Should().Contain("Command createSearchIndexes failed: \"userCommand.indexes[0].mappings\" is required.");
+            exception.Message.Should().Contain("Command createSearchIndexes failed");
         }
 
         [Theory(Timeout = Timeout)]