diff --git a/service/openai_api.py b/service/openai_api.py
index 89bdba3..ebd9b4a 100644
--- a/service/openai_api.py
+++ b/service/openai_api.py
@@ -93,7 +93,6 @@ class OpenAIApi:
             else:
                 post_data["model"] = "text-embedding-ada-002"
 
-
             if self.api_type == "azure":
                 # Azure api does not support batch
                 for index, text in enumerate(text_list):
@@ -156,6 +155,7 @@ class OpenAIApi:
 
                     token_usage = int(data["usage"]["total_tokens"])
 
+            if on_index_progress is not None:
                 await on_index_progress(index, len(text_list))
 
         return (doc_list, token_usage)