diff --git a/backend/app/api/media.py b/backend/app/api/media.py
index 1eb54e1..6f17898 100644
--- a/backend/app/api/media.py
+++ b/backend/app/api/media.py
@@ -2,7 +2,7 @@ from fastapi import APIRouter, UploadFile, File, Query, HTTPException
 from fastapi.responses import Response
 
 from app.schemas.media import MediaUploadResponse
-from app.services.media import save_image, save_audio, delete_media, ALLOWED_IMAGE_TYPES, ALLOWED_AUDIO_TYPES
+from app.services.media import save_image, save_audio, delete_media, ALLOWED_IMAGE_TYPES, ALLOWED_AUDIO_PREFIXES
 
 router = APIRouter()
 
@@ -12,10 +12,10 @@ async def upload_media(
     file: UploadFile = File(...),
     context: str = Query(default="note", pattern="^(product|note|attachment)$"),
 ):
-    content_type = (file.content_type or "").lower()
+    content_type = (file.content_type or "").lower().split(";")[0].strip()
     if content_type in ALLOWED_IMAGE_TYPES:
         result = await save_image(file, context=context)
-    elif content_type in ALLOWED_AUDIO_TYPES:
+    elif content_type in ALLOWED_AUDIO_PREFIXES:
         result = await save_audio(file)
     else:
         raise HTTPException(status_code=400, detail=f"Type de fichier non supporté : {content_type}")