diff --git a/aitrainer_backoffice/aitrainer_backoffice/admin.py b/aitrainer_backoffice/aitrainer_backoffice/admin.py
index 4f43e83..d3d63e5 100644
--- a/aitrainer_backoffice/aitrainer_backoffice/admin.py
+++ b/aitrainer_backoffice/aitrainer_backoffice/admin.py
@@ -138,7 +138,7 @@ class ProductAdmin(admin.ModelAdmin):
 
 
 class PurchaseAdmin(admin.ModelAdmin):
-    list_display = ('id', 'product', 'customer_id', 'purchase_sum', 'currency', 'date_add')
+    list_display = ('purchase_id', 'product', 'customer_id', 'purchase_sum', 'currency', 'date_add')
     list_filter = ['product']
 
 
diff --git a/aitrainer_backoffice/aitrainer_backoffice/models.py b/aitrainer_backoffice/aitrainer_backoffice/models.py
index 557ac8b..3baf6ab 100644
--- a/aitrainer_backoffice/aitrainer_backoffice/models.py
+++ b/aitrainer_backoffice/aitrainer_backoffice/models.py
@@ -175,7 +175,7 @@ class Product(models.Model):
 
 
 class Purchase(models.Model):
-    id = models.AutoField(primary_key=True)
+    purchase_id = models.AutoField(primary_key=True)
     product = models.ForeignKey(Product, on_delete=models.CASCADE)
     customer_id = models.IntegerField()
     date_add = models.DateField(blank=True, null=True)
@@ -183,6 +183,6 @@ class Purchase(models.Model):
     currency = models.CharField(max_length=3)
 
     class Meta:
-        db_table = 'Purchase'
+        db_table = 'purchase'
         verbose_name = _("Purchase")
         verbose_name_plural = _("Purchases")