diff --git a/KeyVaultExplorer/ViewModels/FilterService.cs b/KeyVaultExplorer/ViewModels/FilterService.cs
index 5720940..463a30c 100644
--- a/KeyVaultExplorer/ViewModels/FilterService.cs
+++ b/KeyVaultExplorer/ViewModels/FilterService.cs
@@ -15,6 +15,8 @@ public static IList<KvSubscriptionModel> Filter(IList<KvSubscriptionModel> allSu
             return allSubscriptions;
         }
 
+        var filteredSubscriptions = new List<KvSubscriptionModel>();
+
         foreach (var subscription in allSubscriptions)
         {
             var filteredResourceGroups = subscription.ResourceGroups
@@ -38,12 +40,12 @@ public static IList<KvSubscriptionModel> Filter(IList<KvSubscriptionModel> allSu
                     ResourceGroups = new ObservableCollection<KvResourceGroupModel>(filteredResourceGroups)
                 };
 
-                new List<KvSubscriptionModel>().Add(filteredSubscription);
+                filteredSubscriptions.Add(filteredSubscription);
             }
         }
 
         // Sort the filtered results alphabetically
-        var sortedSubscriptions = SortService.SortSubscriptions(new List<KvSubscriptionModel>());
+        var sortedSubscriptions = SortService.SortSubscriptions(filteredSubscriptions);
 
         // Sort the nested collections within each subscription
         foreach (var subscription in sortedSubscriptions)