diff --git a/MuoVErsi/handlers.py b/MuoVErsi/handlers.py
index f076a6b..15a8a16 100644
--- a/MuoVErsi/handlers.py
+++ b/MuoVErsi/handlers.py
@@ -250,8 +250,13 @@ async def send_stop_times(_, lang, db_file: Source, stop_times_filter: StopTimes
     if context.user_data.get('day') != stop_times_filter.day.isoformat():
         context.user_data['day'] = stop_times_filter.day.isoformat()
 
+    # add service_ids to Source instance, this way it can be accessed from get_stop_times
+    db_file.service_ids = context.bot_data.setdefault('service_ids', {}).setdefault(db_file.name, {})
+
     results = stop_times_filter.get_times(db_file)
 
+    context.bot_data['service_ids'][db_file.name] = db_file.service_ids
+
     context.user_data['lines'] = stop_times_filter.lines
 
     text, reply_markup = stop_times_filter.format_times_text(results, _, lang)
diff --git a/MuoVErsi/sources/GTFS/source.py b/MuoVErsi/sources/GTFS/source.py
index c386eed..2d46f60 100644
--- a/MuoVErsi/sources/GTFS/source.py
+++ b/MuoVErsi/sources/GTFS/source.py
@@ -45,6 +45,7 @@ def __init__(self, transport_type, emoji, session, typesense, gtfs_version=None,
         super().__init__(transport_type[:3], emoji, session, typesense)
         self.transport_type = transport_type
         self.location = location
+        self.service_ids = {}
 
         if gtfs_version:
             self.gtfs_version = gtfs_version
@@ -172,7 +173,7 @@ def upload_stops_clusters_to_db(self, force=False) -> bool:
         return True
 
     def get_stop_times(self, stop: Station, line, start_time, day,
-                       offset_times, context: ContextTypes.DEFAULT_TYPE | None = None, count=False):
+                       offset_times, count=False):
         cur = self.con.cursor()
 
         route_name, route_id = line.split('-') if '-' in line else (line, '')
@@ -183,7 +184,7 @@ def get_stop_times(self, stop: Station, line, start_time, day,
             line = route_id
             route = 'AND r.route_id = ?'
 
-        today_service_ids = self.get_active_service_ids(day, context)
+        today_service_ids = self.get_active_service_ids(day)
 
         stop_ids = stop.ids.split(',')
         stop_ids = list(map(int, stop_ids))
@@ -198,7 +199,7 @@ def get_stop_times(self, stop: Station, line, start_time, day,
         or_other_service = ''
         yesterday_service_ids = []
         if start_dt.hour < 6:
-            yesterday_service_ids = self.get_active_service_ids(day - timedelta(days=1), context)
+            yesterday_service_ids = self.get_active_service_ids(day - timedelta(days=1))
             if yesterday_service_ids:
                 or_other_service_ids = ','.join(['?'] * len(yesterday_service_ids))
                 or_other_service = f'OR (dep.departure_time >= ? AND t.service_id in ({or_other_service_ids}))'
@@ -289,7 +290,7 @@ def get_stop_times_between_stops(self, dep_stop: Station, arr_stop: Station, lin
             line = route_id
             route = 'AND r.route_id = ?'
 
-        today_service_ids = self.get_active_service_ids(day, context)
+        today_service_ids = self.get_active_service_ids(day)
         dep_stop_ids = dep_stop.ids.split(',')
         dep_stop_ids = list(map(int, dep_stop_ids))
 
@@ -306,7 +307,7 @@ def get_stop_times_between_stops(self, dep_stop: Station, arr_stop: Station, lin
         or_other_service = ''
         yesterday_service_ids = []
         if start_dt.hour < 6:
-            yesterday_service_ids = self.get_active_service_ids(day - timedelta(days=1), context)
+            yesterday_service_ids = self.get_active_service_ids(day - timedelta(days=1))
             if yesterday_service_ids:
                 or_other_service_ids = ','.join(['?'] * len(yesterday_service_ids))
                 or_other_service = f'OR (dep.departure_time >= ? AND t.service_id in ({or_other_service_ids}))'
@@ -411,7 +412,7 @@ def get_stop_times_between_stops(self, dep_stop: Station, arr_stop: Station, lin
 
     def search_lines(self, name, context: ContextTypes.DEFAULT_TYPE | None = None):
         today = date.today()
-        service_ids = self.get_active_service_ids(today, context)
+        service_ids = self.get_active_service_ids(today)
 
         cur = self.con.cursor()
         query = """SELECT trips.trip_id, route_short_name, route_long_name, routes.route_id
@@ -426,16 +427,14 @@ def search_lines(self, name, context: ContextTypes.DEFAULT_TYPE | None = None):
         results = cur.execute(query, (name, *service_ids)).fetchall()
         return results
 
-    def get_active_service_ids(self, day: date, context: ContextTypes.DEFAULT_TYPE | None = None) -> tuple:
+    def get_active_service_ids(self, day: date) -> tuple:
         today_ymd = day.strftime('%Y%m%d')
 
-        if context:
-            # access safely context.bot_data['service_ids'][self.name][today_ymd]
-            service_ids = context.bot_data.setdefault('service_ids', {}).setdefault(self.name, {}).setdefault(today_ymd,
-                                                                                                              None)
-            if service_ids:
-                logger.info(f'Using cached service_ids for {today_ymd}')
-                return service_ids
+        # access safely context.bot_data['service_ids'][self.name][today_ymd]
+        service_ids = self.service_ids.setdefault(today_ymd, None)
+        if service_ids:
+            logger.info(f'Using cached service_ids for {today_ymd}')
+            return service_ids
 
         weekday = day.strftime('%A').lower()
 
@@ -461,9 +460,8 @@ def get_active_service_ids(self, day: date, context: ContextTypes.DEFAULT_TYPE |
 
         service_ids = tuple(service_ids)
 
-        if context:
-            context.bot_data.setdefault('service_ids', {}).setdefault(self.name, {})[today_ymd] = service_ids
-            logger.info(f'Cached service_ids for {today_ymd}')
+        self.service_ids[today_ymd] = service_ids
+        logger.info(f'Cached service_ids for {today_ymd}')
 
         return service_ids
 
diff --git a/MuoVErsi/sources/base.py b/MuoVErsi/sources/base.py
index 4446c98..b6c7ba9 100644
--- a/MuoVErsi/sources/base.py
+++ b/MuoVErsi/sources/base.py
@@ -221,7 +221,7 @@ def search_stops(self, name=None, lat=None, lon=None, page=1, limit=4, all_sourc
         return stations, found
 
     def get_stop_times(self, stop: Station, line, start_time, day,
-                       offset_times, context: ContextTypes.DEFAULT_TYPE | None = None, count=False):
+                       offset_times, count=False):
         raise NotImplementedError
 
     def get_stop_times_between_stops(self, dep_stop: Station, arr_stop: Station, line, start_time,
diff --git a/MuoVErsi/sources/trenitalia.py b/MuoVErsi/sources/trenitalia.py
index ec974ec..9204827 100644
--- a/MuoVErsi/sources/trenitalia.py
+++ b/MuoVErsi/sources/trenitalia.py
@@ -138,7 +138,7 @@ def file_path(self):
         return os.path.join(parent_dir, 'trenitalia.db')
 
     def get_stop_times(self, stop: Station, line, start_time, day,
-                       offset_times, context: ContextTypes.DEFAULT_TYPE | None = None, count=False):
+                       offset_times, count=False):
         day_start = datetime.combine(day, time(0))
 
         if start_time == '':
diff --git a/MuoVErsi/stop_times_filter.py b/MuoVErsi/stop_times_filter.py
index bbf78b1..3ba00b3 100644
--- a/MuoVErsi/stop_times_filter.py
+++ b/MuoVErsi/stop_times_filter.py
@@ -90,11 +90,10 @@ def get_times(self, db_file: Source) -> list[Liner]:
                                                                   context=self.context, count=True)
             return results
 
-        results = db_file.get_stop_times(dep_stop, line, start_time, day, self.offset_times, context=self.context)
+        results = db_file.get_stop_times(dep_stop, line, start_time, day, self.offset_times)
 
         if self.lines is None:
-            self.lines = db_file.get_stop_times(dep_stop, line, start_time, day, self.offset_times,
-                                                context=self.context, count=True)
+            self.lines = db_file.get_stop_times(dep_stop, line, start_time, day, self.offset_times, count=True)
 
         return results