diff --git a/backend/routes/osm.py b/backend/routes/osm.py
index ddec009..d2927ce 100644
--- a/backend/routes/osm.py
+++ b/backend/routes/osm.py
@@ -167,7 +167,6 @@ async def get_pois(
     north: float = Query(...),
     east:  float = Query(...),
     fast:  bool  = Query(False),
-    background_tasks: BackgroundTasks = None,
     user = Depends(get_optional_user),
 ):
     result = []
@@ -178,11 +177,11 @@ async def get_pois(
         stale = _stale_tiles(type, tiles)
 
         if stale and not fast:
-            # Hintergrund-Fetch: Antwort kommt sofort, Overpass lädt asynchron
-            async def _bg_fetch():
-                for (x, y) in stale:
-                    await _fetch_and_store_tile(type, x, y)
-            background_tasks.add_task(_bg_fetch)
+            # Direkt in den Event-Loop einplanen — Antwort kommt sofort zurück
+            async def _bg_fetch(poi_type, stale_tiles):
+                for (x, y) in stale_tiles:
+                    await _fetch_and_store_tile(poi_type, x, y)
+            asyncio.create_task(_bg_fetch(type, stale))
 
         with db() as conn:
             reported = {