diff --git a/rog/views.py b/rog/views.py
index 0ed002a..69cfe9f 100644
--- a/rog/views.py
+++ b/rog/views.py
@@ -210,8 +210,9 @@ def ExtentForMainPerf(request):
 @csrf_exempt 
 def ExtentForLocations(request):
     user = request.user
-    print(user.email)
-    locs = Location.objects.filter(group__contains=user.group).aggregate(Extent('geom'), Union('geom'))
+    grp = user.group.removeprefix('大垣-')
+    print(user.group)
+    locs = Location.objects.filter(group__contains=grp).aggregate(Extent('geom'), Union('geom'))
     return JsonResponse(locs['geom__extent'], safe=False)