diff --git a/litellm/proxy/db/db_spend_update_writer.py b/litellm/proxy/db/db_spend_update_writer.py
index 6c9289e3ff6..7ae1a1eff83 100644
--- a/litellm/proxy/db/db_spend_update_writer.py
+++ b/litellm/proxy/db/db_spend_update_writer.py
@@ -1054,6 +1054,7 @@ async def _update_daily_spend(
                                 x[1].get("api_key") or "",
                                 x[1].get("model") or "",
                                 x[1].get("custom_llm_provider") or "",
+                                x[1].get("mcp_namespaced_tool_name") or "",
                             ),
                         )[:BATCH_SIZE]
                     )
diff --git a/tests/test_litellm/proxy/db/test_db_spend_update_writer.py b/tests/test_litellm/proxy/db/test_db_spend_update_writer.py
index 181d21b44f6..0ce9f625f2e 100644
--- a/tests/test_litellm/proxy/db/test_db_spend_update_writer.py
+++ b/tests/test_litellm/proxy/db/test_db_spend_update_writer.py
@@ -306,6 +306,20 @@ async def test_update_daily_spend_with_none_values_in_sorting_fields():
             "successful_requests": 1,
             "failed_requests": 0,
         },
+        "key6": {
+            "user_id": "user6",
+            "date": "2024-01-01",
+            "api_key": "test-api-key",
+            "model": "gpt-4",
+            "custom_llm_provider": "openai",
+            "mcp_namespaced_tool_name": None,  # None mcp_namespaced_tool_name
+            "prompt_tokens": 10,
+            "completion_tokens": 20,
+            "spend": 0.1,
+            "api_requests": 1,
+            "successful_requests": 1,
+            "failed_requests": 0,
+        },
     }
 
     # Call the method - this should not raise TypeError
@@ -320,8 +334,8 @@ async def test_update_daily_spend_with_none_values_in_sorting_fields():
         unique_constraint_name="user_id_date_api_key_model_custom_llm_provider",
     )
 
-    # Verify that table.upsert was called (should be called 5 times, once for each transaction)
-    assert mock_table.upsert.call_count == 5
+    # Verify that table.upsert was called (should be called 6 times, once for each transaction)
+    assert mock_table.upsert.call_count == 6
 
 
 # Tag Spend Tracking Tests