diff --git a/Groceries.Data/AppDbContext.cs b/Groceries.Data/AppDbContext.cs
index 2c28ba9..c952f8b 100644
--- a/Groceries.Data/AppDbContext.cs
+++ b/Groceries.Data/AppDbContext.cs
@@ -10,6 +10,7 @@ public class AppDbContext : DbContext
     }
 
     public DbSet<Item> Items => Set<Item>();
+    public DbSet<ItemBarcode> ItemBarcodes => Set<ItemBarcode>();
     public DbSet<ItemPurchase> ItemPurchases => Set<ItemPurchase>();
     public DbSet<ItemTagQuantity> ItemTagQuantities => Set<ItemTagQuantity>();
     public DbSet<List> Lists => Set<List>();
@@ -28,7 +29,6 @@ public class AppDbContext : DbContext
 
         modelBuilder.Entity<ItemBarcode>(entity =>
         {
-            entity.ToTable("item_barcodes");
             entity.HasKey(e => new { e.ItemId, e.BarcodeData });
 
             entity.Property(e => e.Format)
diff --git a/Groceries/Transactions/TransactionsController.cs b/Groceries/Transactions/TransactionsController.cs
index 77377e9..5389cf1 100644
--- a/Groceries/Transactions/TransactionsController.cs
+++ b/Groceries/Transactions/TransactionsController.cs
@@ -142,7 +142,13 @@ public class TransactionsController : Controller
         var item = new Item(itemId, brand, name);
         if (barcodeData != null && barcodeFormat != null)
         {
-            item.Barcodes.Add(new ItemBarcode(itemId, barcodeData.Value, barcodeFormat));
+            var barcode = new ItemBarcode(itemId, barcodeData.Value, barcodeFormat);
+            item.Barcodes.Add(barcode);
+
+            if (!await dbContext.ItemBarcodes.ContainsAsync(barcode))
+            {
+                dbContext.ItemBarcodes.Add(barcode);
+            }
         }
 
         dbContext.Items.Attach(item);