diff --git a/counter/models.py b/counter/models.py
index c22a1469..0c7790c9 100644
--- a/counter/models.py
+++ b/counter/models.py
@@ -431,7 +431,7 @@ class PriceQuerySet(models.QuerySet):
             ),
             product__archived=False,
             product__limit_age__lte=age,
-        )
+        ).distinct()
 
 
 class Price(models.Model):
diff --git a/counter/tests/test_product.py b/counter/tests/test_product.py
index 7ab9ff88..5fb6e233 100644
--- a/counter/tests/test_product.py
+++ b/counter/tests/test_product.py
@@ -219,6 +219,6 @@ def test_price_for_user():
         recipe.make(amount=1, groups=[groups[1]], is_always_shown=False),
     ]
     qs = Price.objects.order_by("-amount")
-    assert set(qs.for_user(users[0])) == {prices[0], prices[1], prices[4]}
-    assert set(qs.for_user(users[1])) == {prices[0], prices[4]}
-    assert set(qs.for_user(users[2])) == {prices[0], prices[3]}
+    assert list(qs.for_user(users[0])) == [prices[0], prices[1], prices[4]]
+    assert list(qs.for_user(users[1])) == [prices[0], prices[4]]
+    assert list(qs.for_user(users[2])) == [prices[0], prices[3]]