diff --git a/Shoko.Server/API/v3/Controllers/GroupController.cs b/Shoko.Server/API/v3/Controllers/GroupController.cs
index 8f835337b..e90076386 100644
--- a/Shoko.Server/API/v3/Controllers/GroupController.cs
+++ b/Shoko.Server/API/v3/Controllers/GroupController.cs
@@ -9,7 +9,6 @@
 using Shoko.Server.API.v3.Helpers;
 using Shoko.Server.API.v3.Models.Common;
 using Shoko.Server.API.v3.Models.Shoko;
-using Shoko.Server.Extensions;
 using Shoko.Server.Models;
 using Shoko.Server.Repositories;
 using Shoko.Server.Tasks;
@@ -58,7 +57,7 @@ public ActionResult<ListResult<Group>> GetAllGroups([FromQuery] [Range(0, 100)]
 
                     return includeEmpty || group.GetAllSeries().Any(s => s.GetAnimeEpisodes().Any(e => e.GetVideoLocals().Count > 0));
                 })
-                .OrderByName()
+                .OrderBy(group => group.GroupName)
                 .ToListResult(group => new Group(HttpContext, group, randomImages), page, pageSize);
         }
 
diff --git a/Shoko.Server/API/v3/Controllers/TreeController.cs b/Shoko.Server/API/v3/Controllers/TreeController.cs
index b9b2a6687..3510f0be7 100644
--- a/Shoko.Server/API/v3/Controllers/TreeController.cs
+++ b/Shoko.Server/API/v3/Controllers/TreeController.cs
@@ -9,7 +9,6 @@
 using Shoko.Server.API.v3.Helpers;
 using Shoko.Server.API.v3.Models.Common;
 using Shoko.Server.API.v3.Models.Shoko;
-using Shoko.Server.Extensions;
 using Shoko.Server.Models;
 using Shoko.Server.Repositories;
 
@@ -49,7 +48,7 @@ public ActionResult<ListResult<Filter>> GetSubFilters([FromRoute] int filterID,
 
             return RepoFactory.GroupFilter.GetByParentID(filterID)
                 .Where(filter => showHidden || filter.InvisibleInClients != 1)
-                .OrderByName()
+                .OrderBy(filter => filter.GroupFilterName)
                 .ToListResult(filter => new Filter(HttpContext, filter), page, pageSize);
         }
 
@@ -72,7 +71,7 @@ public ActionResult<ListResult<Group>> GetFilteredGroups([FromRoute] int filterI
                 var user = User;
                 groups = RepoFactory.AnimeGroup.GetAll()
                     .Where(group => !group.AnimeGroupParentID.HasValue && user.AllowedGroup(group))
-                    .OrderByName();
+                    .OrderBy(group => group.GroupName);
             }
             else
             {
@@ -196,7 +195,7 @@ public ActionResult<List<Series>> GetSeriesInFilteredGroup([FromRoute] int filte
 
             return (recursive ? group.GetAllSeries() : group.GetSeries())
                 .Where(series => seriesIDs.Contains(series.AnimeSeriesID))
-                .OrderByAirDate()
+                .OrderBy(series => series.GetAnime()?.AirDate ?? DateTime.MaxValue)
                 .Select(series => new Series(HttpContext, series))
                 .Where(series => series.Size > 0 || includeMissing)
                 .ToList();
@@ -235,7 +234,7 @@ public ActionResult<List<Group>> GetSubGroups([FromRoute] int groupID, [FromQuer
 
                     return includeEmpty || group.GetAllSeries().Any(s => s.GetAnimeEpisodes().Any(e => e.GetVideoLocals().Count > 0));
                 })
-                .OrderByName()
+                .OrderBy(group => group.GroupName)
                 .Select(group => new Group(HttpContext, group, randomImages))
                 .ToList();
         }
@@ -263,7 +262,7 @@ public ActionResult<List<Series>> GetSeriesInGroup([FromRoute] int groupID, [Fro
             var user = User;
             return (recursive ? group.GetAllSeries() : group.GetSeries())
                 .Where(a => user.AllowedSeries(a))
-                .OrderByAirDate()
+                .OrderBy(series => series.GetAnime()?.AirDate ?? DateTime.MaxValue)
                 .Select(series => new Series(HttpContext, series, randomImages))
                 .Where(series => series.Size > 0 || includeMissing)
                 .ToList();
diff --git a/Shoko.Server/Extensions/IEnumerableExtenions.cs b/Shoko.Server/Extensions/IEnumerableExtenions.cs
deleted file mode 100644
index 2cbc22657..000000000
--- a/Shoko.Server/Extensions/IEnumerableExtenions.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using Shoko.Server.Models;
-
-namespace Shoko.Server.Extensions
-{
-    
-    public static class IEnumerableExtensions
-    {
-        public static IOrderedEnumerable<SVR_AnimeSeries> OrderByAirDate(this IEnumerable<SVR_AnimeSeries> enumerable)
-        {
-            return enumerable.OrderBy(series => series.GetAnime()?.AirDate ?? DateTime.MaxValue);
-        }
-
-        public static IOrderedEnumerable<SVR_AnimeGroup> OrderByName(this IEnumerable<SVR_AnimeGroup> enumerable)
-        {
-            return enumerable.OrderBy(group => group.GroupName);
-        }
-
-        public static IOrderedEnumerable<SVR_GroupFilter> OrderByName(this IEnumerable<SVR_GroupFilter> enumerable)
-        {
-            return enumerable.OrderBy(filter => filter.GroupFilterName);
-        }
-    }
-}
\ No newline at end of file
diff --git a/Shoko.Server/Models/SVR_AnimeGroup.cs b/Shoko.Server/Models/SVR_AnimeGroup.cs
index c99156ca8..650f63c6c 100644
--- a/Shoko.Server/Models/SVR_AnimeGroup.cs
+++ b/Shoko.Server/Models/SVR_AnimeGroup.cs
@@ -312,7 +312,7 @@ public SVR_AnimeSeries GetMainSeries()
 
             // Earliest airing series.
             return GetAllSeries()
-                .OrderByAirDate()
+                .OrderBy(series => series.GetAnime()?.AirDate ?? DateTime.MaxValue)
                 .FirstOrDefault();
         }