diff --git a/MoneyMap/Pages/Receipts.cshtml.cs b/MoneyMap/Pages/Receipts.cshtml.cs
index b94b907..2fe8e6c 100644
--- a/MoneyMap/Pages/Receipts.cshtml.cs
+++ b/MoneyMap/Pages/Receipts.cshtml.cs
@@ -171,10 +171,12 @@ namespace MoneyMap.Pages
             }).ToList();
 
             // Load matching transactions for each unmapped receipt
-            var transactionsWithReceipts = await _db.Receipts
+            var transactionsWithReceiptsList = await _db.Receipts
                 .Where(r => r.TransactionId != null)
                 .Select(r => r.TransactionId!.Value)
-                .ToHashSet();
+                .ToListAsync();
+
+            var transactionsWithReceipts = new HashSet<long>(transactionsWithReceiptsList);
 
             var unmappedReceipts = Receipts.Where(r => !r.TransactionId.HasValue).ToList();