diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs
index 41f7283535..b5e32b70a1 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs
@@ -365,9 +365,9 @@ public sealed partial class MainListPage : DynamicListPage,
             }
 
             // prefilter fallbacks
-            var globalFallbacks = _settingsService.Settings.GetGlobalFallbacks();
-            var specialFallbacks = new List<TopLevelViewModel>(globalFallbacks.Length);
-            var commonFallbacks = new List<TopLevelViewModel>(commands.Count - globalFallbacks.Length);
+            var configuredGlobalFallbackIds = _settingsService.Settings.GetGlobalFallbacks();
+            var specialFallbacks = new List<TopLevelViewModel>(configuredGlobalFallbackIds.Length);
+            var commonFallbacks = new List<TopLevelViewModel>(Math.Max(commands.Count - configuredGlobalFallbackIds.Length, 0));
 
             foreach (var s in commands)
             {
@@ -376,7 +376,7 @@ public sealed partial class MainListPage : DynamicListPage,
                     continue;
                 }
 
-                if (globalFallbacks.Contains(s.Id))
+                if (configuredGlobalFallbackIds.Contains(s.Id))
                 {
                     specialFallbacks.Add(s);
                 }
@@ -509,7 +509,7 @@ public sealed partial class MainListPage : DynamicListPage,
                 return;
             }
 
-            IEnumerable<IListItem> newFallbacksForScoring = commands.Where(s => s.IsFallback && globalFallbacks.Contains(s.Id));
+            IEnumerable<IListItem> newFallbacksForScoring = commands.Where(s => s.IsFallback && configuredGlobalFallbackIds.Contains(s.Id));
             _scoredFallbackItems = InternalListHelpers.FilterListWithScores(newFallbacksForScoring, searchQuery, _scoringFunction);
 
             if (token.IsCancellationRequested)