diff --git a/LightlessSyncAPI/Dto/Group/GroupPruneSettingsDto.cs b/LightlessSyncAPI/Dto/Group/GroupPruneSettingsDto.cs
index 6760c43..2d8bd10 100644
--- a/LightlessSyncAPI/Dto/Group/GroupPruneSettingsDto.cs
+++ b/LightlessSyncAPI/Dto/Group/GroupPruneSettingsDto.cs
@@ -1,6 +1,7 @@
 using LightlessSync.API.Data;
+using MessagePack;
 
-namespace LightlessSync.API.Dto.Group
-{
-    public record GroupPruneSettingsDto(GroupData Group, bool AutoPruneEnabled, int AutoPruneDays);
-}
+namespace LightlessSync.API.Dto.Group;
+
+[MessagePackObject(keyAsPropertyName: true)]
+public record GroupPruneSettingsDto(GroupData Group, bool AutoPruneEnabled, int AutoPruneDays);