diff --git a/transport_accessibility/pt_map/views.py b/transport_accessibility/pt_map/views.py
index 5936db7..9cab5c0 100644
--- a/transport_accessibility/pt_map/views.py
+++ b/transport_accessibility/pt_map/views.py
@@ -52,6 +52,6 @@ def index(request):
             timetable = get_timetable(r, trips, stop_sequences)
         except Route.DoesNotExist:
             print(f"Invalid request for Route with id {request.GET['timetable']}")
-    context = {"data": json.dumps({"stops": stops, "routes": routes, "timetable": timetable})}
+    context = {"data": str(json.dumps({"stops": stops, "routes": routes, "timetable": timetable}))}
     return render(request,"map.html", context)