diff --git a/src/khoj/processor/conversation/offline/whisper.py b/src/khoj/processor/conversation/offline/whisper.py
index d22486a9..56d2aaf5 100644
--- a/src/khoj/processor/conversation/offline/whisper.py
+++ b/src/khoj/processor/conversation/offline/whisper.py
@@ -6,7 +6,7 @@ import whisper
 from khoj.utils import state
 
 
-async def transcribe_audio_offline(audio_filename: str, model: str) -> str | None:
+async def transcribe_audio_offline(audio_filename: str, model: str) -> str:
     """
     Transcribe audio file offline using Whisper
     """
diff --git a/src/khoj/processor/conversation/openai/whisper.py b/src/khoj/processor/conversation/openai/whisper.py
index 6690c236..72834d92 100644
--- a/src/khoj/processor/conversation/openai/whisper.py
+++ b/src/khoj/processor/conversation/openai/whisper.py
@@ -6,7 +6,7 @@ from asgiref.sync import sync_to_async
 import openai
 
 
-async def transcribe_audio(audio_file: BufferedReader, model, api_key) -> str | None:
+async def transcribe_audio(audio_file: BufferedReader, model, api_key) -> str:
     """
     Transcribe audio file using Whisper model via OpenAI's API
     """