diff --git a/topologie/views.py b/topologie/views.py
index 59532b99..c8be33b7 100644
--- a/topologie/views.py
+++ b/topologie/views.py
@@ -339,7 +339,8 @@ def index_model_switch(request):
 def index_module(request):
     """Display all modules of switchs"""
     module_list = ModuleSwitch.objects.all()
-    modular_switchs = Switch.objects.filter(model__is_modular=True)
+    modular_switchs = Switch.objects.filter(model__is_modular=True)\
+    .select_related('model').prefetch_related('moduleonswitch_set__module')
     pagination_number = GeneralOption.get_cached_value('pagination_number')
     module_list = re2o_paginator(request, module_list, pagination_number)
     return render(