diff --git a/kfet/views.py b/kfet/views.py
index a0e3115c..b6c49f72 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -2,6 +2,7 @@ import ast
 import heapq
 import statistics
 from collections import defaultdict
+from datetime import timedelta
 from decimal import Decimal
 from typing import List
 from urllib.parse import urlencode
@@ -2523,9 +2524,12 @@ class ArticleStatSalesList(SingleResumeStat):
         first_conso = (
             Operation.objects.filter(article=self.object)
             .order_by("group__at")
+            .values_list("group__at", flat=True)
             .first()
-            .group.at
         )
+        if first_conso is None:
+            # On le crée dans le passé au cas où
+            first_conso = timezone.now() - timedelta(seconds=1)
         scales_def = [
             ("Tout le temps", MonthScale, {"last": True, "begin": first_conso}, False),
             ("1 an", MonthScale, {"last": True, "n_steps": 12}, False),