diff --git a/ecologits/tracers/openai_tracer.py b/ecologits/tracers/openai_tracer.py
index b92768d..1cf21a0 100644
--- a/ecologits/tracers/openai_tracer.py
+++ b/ecologits/tracers/openai_tracer.py
@@ -76,7 +76,7 @@ def openai_chat_wrapper_stream(
     token_count = 0
     for i, chunk in enumerate(stream):
         # azure openai has an empty first chunk so we skip it
-        if i==0 and chunk.model=="":
+        if i == 0 and chunk.model == "":
             continue
         if i > 0 and chunk.choices[0].finish_reason is None:
             token_count += 1
diff --git a/tests/test_openai.py b/tests/test_openai.py
index a38da61..a055b13 100644
--- a/tests/test_openai.py
+++ b/tests/test_openai.py
@@ -2,6 +2,7 @@
 import pytest
 from openai import OpenAI, AsyncOpenAI, AzureOpenAI, AsyncAzureOpenAI
 
+
 @pytest.mark.vcr
 def test_openai_chat(tracer_init):
     client = OpenAI()
@@ -60,7 +61,8 @@ def test_azure_openai_chat(tracer_init):
     )
     assert len(response.choices) > 0
     assert response.impacts.energy.value > 0
-    
+
+
 @pytest.mark.vcr
 @pytest.mark.asyncio
 async def test_azure_openai_async_chat(tracer_init):
@@ -72,6 +74,7 @@ async def test_azure_openai_async_chat(tracer_init):
     assert len(response.choices) > 0
     assert response.impacts.energy.value > 0
 
+
 @pytest.mark.vcr
 def test_azure_openai_stream_chat(tracer_init):
     client = AzureOpenAI(azure_endpoint=os.getenv("AZURE_OPENAI_ENDPOINT"),
@@ -83,4 +86,3 @@ def test_azure_openai_stream_chat(tracer_init):
     )
     for chunk in stream:
         assert chunk.impacts.energy.value >= 0
-