diff --git a/Content.Client/Administration/UI/Logs/AdminLogsEui.cs b/Content.Client/Administration/UI/Logs/AdminLogsEui.cs
index 0cddd65ae2..ec818632ce 100644
--- a/Content.Client/Administration/UI/Logs/AdminLogsEui.cs
+++ b/Content.Client/Administration/UI/Logs/AdminLogsEui.cs
@@ -48,7 +48,7 @@ public class AdminLogsEui : BaseEui
     {
         var request = new LogsRequest(
             LogsControl.SelectedRoundId,
-            LogsControl.SelectedTypes.ToList(),
+            LogsControl.SelectedTypes.ToHashSet(),
             null,
             null,
             null,
diff --git a/Content.IntegrationTests/Tests/Administration/Logs/AddTests.cs b/Content.IntegrationTests/Tests/Administration/Logs/AddTests.cs
index e78d501560..c32c5932dd 100644
--- a/Content.IntegrationTests/Tests/Administration/Logs/AddTests.cs
+++ b/Content.IntegrationTests/Tests/Administration/Logs/AddTests.cs
@@ -122,7 +122,7 @@ public class AddTests : ContentIntegrationTest
         {
             Round = log.RoundId,
             Search = log.Message,
-            Types = new List<LogType> {log.Type},
+            Types = new HashSet<LogType> {log.Type},
         };
 
         await foreach (var json in sDatabase.GetAdminLogsJson(filter))
@@ -295,7 +295,7 @@ public class AddTests : ContentIntegrationTest
         {
             Round = log.RoundId,
             Search = log.Message,
-            Types = new List<LogType> {log.Type},
+            Types = new HashSet<LogType> {log.Type},
         };
 
         await foreach (var json in sDatabase.GetAdminLogsJson(filter))
diff --git a/Content.IntegrationTests/Tests/Administration/Logs/QueryTests.cs b/Content.IntegrationTests/Tests/Administration/Logs/QueryTests.cs
index 6ba0e6ad55..390384abc1 100644
--- a/Content.IntegrationTests/Tests/Administration/Logs/QueryTests.cs
+++ b/Content.IntegrationTests/Tests/Administration/Logs/QueryTests.cs
@@ -4,7 +4,6 @@ using System.Linq;
 using System.Threading.Tasks;
 using Content.Server.Administration.Logs;
 using Content.Server.GameTicking;
-using Content.Shared.Administration.Logs;
 using Content.Shared.CCVar;
 using Content.Shared.Database;
 using NUnit.Framework;
@@ -53,7 +52,7 @@ public class QueryTests : ContentIntegrationTest
         {
             Round = sGamerTicker.RoundId,
             Search = guid.ToString(),
-            Types = new List<LogType> {LogType.Unknown},
+            Types = new HashSet<LogType> {LogType.Unknown},
             After = date,
             AnyPlayers = new[] {player.UserId.UserId}
         };
diff --git a/Content.Server/Administration/Logs/LogFilter.cs b/Content.Server/Administration/Logs/LogFilter.cs
index 20ac639adf..b917ff36b1 100644
--- a/Content.Server/Administration/Logs/LogFilter.cs
+++ b/Content.Server/Administration/Logs/LogFilter.cs
@@ -14,9 +14,9 @@ public sealed class LogFilter
 
     public string? Search { get; set; }
 
-    public List<LogType>? Types { get; set; }
+    public HashSet<LogType>? Types { get; set; }
 
-    public List<LogImpact>? Impacts { get; set; }
+    public HashSet<LogImpact>? Impacts { get; set; }
 
     public DateTime? Before { get; set; }
 
diff --git a/Content.Shared/Administration/AdminLogsEuiState.cs b/Content.Shared/Administration/AdminLogsEuiState.cs
index 3eb48524be..551a5ecbb0 100644
--- a/Content.Shared/Administration/AdminLogsEuiState.cs
+++ b/Content.Shared/Administration/AdminLogsEuiState.cs
@@ -48,8 +48,8 @@ public static class AdminLogsEuiMsg
     {
         public LogsRequest(
             int? roundId,
-            List<LogType>? types,
-            List<LogImpact>? impacts,
+            HashSet<LogType>? types,
+            HashSet<LogImpact>? impacts,
             DateTime? before,
             DateTime? after,
             Guid[]? anyPlayers,
@@ -69,8 +69,8 @@ public static class AdminLogsEuiMsg
         }
 
         public int? RoundId { get; set; }
-        public List<LogType>? Types { get; set; }
-        public List<LogImpact>? Impacts { get; set; }
+        public HashSet<LogType>? Types { get; set; }
+        public HashSet<LogImpact>? Impacts { get; set; }
         public DateTime? Before { get; set; }
         public DateTime? After { get; set; }
         public Guid[]? AnyPlayers { get; set; }