diff --git a/PepperDashEssentials/ControlSystem.cs b/PepperDashEssentials/ControlSystem.cs
index f3fcafab..aafb5b1e 100644
--- a/PepperDashEssentials/ControlSystem.cs
+++ b/PepperDashEssentials/ControlSystem.cs
@@ -483,7 +483,7 @@ namespace PepperDash.Essentials
 
                         Debug.Console(0, Debug.ErrorLogLevel.Notice, "Attempting to build Mobile Control Bridge...");
 
-                        CreateMobileControlBridge(room as EssentialsRoomBase);
+                        CreateMobileControlBridge(room);
                     }
                     else if (room is IEssentialsHuddleVtc1Room)
                     {
@@ -497,7 +497,7 @@ namespace PepperDash.Essentials
 
                         Debug.Console(0, Debug.ErrorLogLevel.Notice, "Attempting to build Mobile Control Bridge...");
 
-                        CreateMobileControlBridge(room as EssentialsRoomBase);
+                        CreateMobileControlBridge(room);
                     }
                     else if (room is EssentialsTechRoom)
                     {
@@ -509,7 +509,7 @@ namespace PepperDash.Essentials
 
                         Debug.Console(0, Debug.ErrorLogLevel.Notice, "Attempting to build Mobile Control Bridge");
 
-                        CreateMobileControlBridge(room as EssentialsRoomBase);
+                        CreateMobileControlBridge(room);
                     }
                     else
                     {
@@ -530,7 +530,7 @@ namespace PepperDash.Essentials
 
         }
 
-        private static void CreateMobileControlBridge(EssentialsRoomBase room)
+        private static void CreateMobileControlBridge(IEssentialsRoom room)
         {
             var mobileControl = GetMobileControlDevice();
 
diff --git a/essentials-framework/Essentials Core/PepperDashEssentialsBase/DeviceTypeInterfaces/IMobileControl.cs b/essentials-framework/Essentials Core/PepperDashEssentialsBase/DeviceTypeInterfaces/IMobileControl.cs
index c87e7865..a2dda43a 100644
--- a/essentials-framework/Essentials Core/PepperDashEssentialsBase/DeviceTypeInterfaces/IMobileControl.cs	
+++ b/essentials-framework/Essentials Core/PepperDashEssentialsBase/DeviceTypeInterfaces/IMobileControl.cs	
@@ -8,7 +8,7 @@ namespace PepperDash.Essentials.Core.DeviceTypeInterfaces
     /// </summary>
     public interface IMobileControl : IKeyed
     {
-        void CreateMobileControlRoomBridge(EssentialsRoomBase room, IMobileControl parent);
+        void CreateMobileControlRoomBridge(IEssentialsRoom room, IMobileControl parent);
 
         void LinkSystemMonitorToAppServer();
     }