diff --git a/python/semantic_kernel/connectors/azure_cosmos_db.py b/python/semantic_kernel/connectors/azure_cosmos_db.py
index 2d1bb53d9630..8e095b02c22c 100644
--- a/python/semantic_kernel/connectors/azure_cosmos_db.py
+++ b/python/semantic_kernel/connectors/azure_cosmos_db.py
@@ -399,7 +399,7 @@ def _get_index_definitions(self, **kwargs: Any) -> dict[str, Any]:
                     f"Distance function '{field.distance_function}' is not supported by Azure Cosmos DB for MongoDB."
                 )
             index_name = f"{field.storage_name or field.name}_"
-            index_kind = DISTANCE_FUNCTION_MAP_MONGODB[field.distance_function]
+            index_kind = INDEX_KIND_MAP_MONGODB[field.index_kind]
             index: dict[str, Any] = {
                 "name": index_name,
                 FieldTypes.KEY: {field.storage_name or field.name: "cosmosSearch"},
diff --git a/python/tests/unit/connectors/memory/azure_cosmos_db/test_azure_cosmos_db_mongodb_collection.py b/python/tests/unit/connectors/memory/azure_cosmos_db/test_azure_cosmos_db_mongodb_collection.py
index 8da8a1ab08e8..99e95884d92b 100644
--- a/python/tests/unit/connectors/memory/azure_cosmos_db/test_azure_cosmos_db_mongodb_collection.py
+++ b/python/tests/unit/connectors/memory/azure_cosmos_db/test_azure_cosmos_db_mongodb_collection.py
@@ -84,10 +84,10 @@ async def test_ensure_collection_exists_calls_database_methods(definition) -> No
     )
 
     # Act
-    await collection.ensure_collection_exists(customArg="customValue")
+    await collection.ensure_collection_exists(customArg="customValue", m=16, efConstruction=64)
 
     # Assert
-    mock_database.create_collection.assert_awaited_once_with("test_collection", customArg="customValue")
+    mock_database.create_collection.assert_awaited_once_with("test_collection", customArg="customValue", m=16, efConstruction=64)
     mock_database.command.assert_awaited()
     command_args = mock_database.command.call_args.kwargs["command"]
 
@@ -98,9 +98,11 @@ async def test_ensure_collection_exists_calls_database_methods(definition) -> No
     # Check the vector field index creation
     assert command_args["indexes"][1]["name"] == "vector_"
     assert command_args["indexes"][1]["key"] == {"vector": "cosmosSearch"}
-    assert command_args["indexes"][1]["cosmosSearchOptions"]["kind"] == "COS"
-    assert command_args["indexes"][1]["cosmosSearchOptions"]["similarity"] is not None
+    assert command_args["indexes"][1]["cosmosSearchOptions"]["kind"] == "vector-hnsw"
+    assert command_args["indexes"][1]["cosmosSearchOptions"]["similarity"] == "COS"
     assert command_args["indexes"][1]["cosmosSearchOptions"]["dimensions"] == 5
+    assert command_args["indexes"][1]["cosmosSearchOptions"]["m"] == 16
+    assert command_args["indexes"][1]["cosmosSearchOptions"]["efConstruction"] == 64
 
 
 async def test_context_manager_calls_aconnect_and_close_when_managed(mock_model) -> None: