diff --git a/server/web2py/applications/vidjil/models/SampleSet.py b/server/web2py/applications/vidjil/models/SampleSet.py
index 93c21552f30e81f635619c88e3f7c01424ae85c1..acc9621a5154deed3510b0c7649f670609582d63 100644
--- a/server/web2py/applications/vidjil/models/SampleSet.py
+++ b/server/web2py/applications/vidjil/models/SampleSet.py
@@ -75,9 +75,15 @@ class SampleSet(object):
     def get_creator(self, data):
         return data['creator']
 
+    def get_files_values(self, data):
+        key = get_file_sizes_select()
+        tmp = [] if data._extra[key] is None else data._extra[key].split(',')
+        file_count = len(tmp)
+        sizes = [int(s.split(';')[1]) for s in tmp]
+        return file_count, sum(sizes)
+
     def get_files(self, data):
-        size = 0 if data['size'] is None else data['size']
-        file_count = 0 if data['file_count'] is None else data['file_count']
+        file_count, size = self.get_files_values(data)
         return '%d (%s)' % (file_count, vidjil_utils.format_size(size))
 
     def get_fields(self):
@@ -221,3 +227,6 @@ def get_config_names_select():
 
 def get_group_names_select():
     return "GROUP_CONCAT(DISTINCT auth_group.role)"
+
+def get_file_sizes_select():
+    return "GROUP_CONCAT(DISTINCT CONCAT(sequence_file.id, ';', sequence_file.size_file))"
diff --git a/server/web2py/applications/vidjil/models/sample_set_list.py b/server/web2py/applications/vidjil/models/sample_set_list.py
index 328302bde6f24fabaf915ecc5e0b93e5342904f9..46b584c69182edd7f39a786963fc46e3f2092662 100644
--- a/server/web2py/applications/vidjil/models/sample_set_list.py
+++ b/server/web2py/applications/vidjil/models/sample_set_list.py
@@ -42,6 +42,7 @@ class SampleSetList():
         group_config_ids = get_config_ids_select()
         group_config_names = get_config_names_select()
         group_group_names = get_group_names_select()
+        group_file_sizes = get_file_sizes_select()
 
         dedicated_fields = helper.get_dedicated_fields()
 
@@ -65,8 +66,7 @@ class SampleSetList():
             s_table.sample_set_id.with_alias('sample_set_id'),
             s_table.info.with_alias('info'),
             db.auth_user.last_name.with_alias('creator'),
-            db.sequence_file.size_file.sum().with_alias('size'),
-            db.sequence_file.id.count(distinct=True).with_alias('file_count'),
+            group_file_sizes,
             db.anon_permission.name.with_alias('has_permission'),
             group_configs,
             group_config_ids,
diff --git a/server/web2py/applications/vidjil/views/sample_set/all.html b/server/web2py/applications/vidjil/views/sample_set/all.html
index cf5c6252a83a129cf1363adf43318f8d9193b933..3d19d9efcf74887033d86f9512e80e3981f611dd 100644
--- a/server/web2py/applications/vidjil/views/sample_set/all.html
+++ b/server/web2py/applications/vidjil/views/sample_set/all.html
@@ -45,8 +45,7 @@
 		       {{= field['call'](data)}}
                    </td>
                {{ pass }}
-            {{ file_count = 0 if data.file_count is None else data.file_count }}
-            {{ size = 0 if data.size is None else data.size }}
+            {{ file_count, size =  helper.get_files_values(data) }}
             {{ total_file_count += file_count ; total_size += size }}
                
 {{if isAdmin:}} <td onclick="db.call('sample_set/permission', {'id' :'{{=data.sample_set_id}}'} )" > <i class="icon-key" title="set permissions"></i> </td> {{else:}} <td></td> {{pass}}