diff --git a/essentials-framework/Essentials Core/PepperDashEssentialsBase/Room/Combining/IEssentialsRoomCombiner.cs b/essentials-framework/Essentials Core/PepperDashEssentialsBase/Room/Combining/IEssentialsRoomCombiner.cs
index c5fa0c50..c0c8101b 100644
--- a/essentials-framework/Essentials Core/PepperDashEssentialsBase/Room/Combining/IEssentialsRoomCombiner.cs	
+++ b/essentials-framework/Essentials Core/PepperDashEssentialsBase/Room/Combining/IEssentialsRoomCombiner.cs	
@@ -51,7 +51,7 @@ namespace PepperDash.Essentials.Core
         /// <summary>
         /// The partition
         /// </summary>
-        List<IPartitionStateProvider> Partitions { get; }
+        List<IPartitionController> Partitions { get; }
 
         /// <summary>
         /// Toggles the state of a manual partition sensor