diff --git a/Component/DebugMonitorUI.cs b/Component/DebugMonitorUI.cs
index 2a158c9..97f50c0 100644
--- a/Component/DebugMonitorUI.cs
+++ b/Component/DebugMonitorUI.cs
@@ -210,13 +210,13 @@ namespace ADOFAIRenderer.Component
 
             // Update Progress Bar
             var progress = 0f;
-            int currentFloor = 0;
-            int totalFloors = 0;
+            var currentFloor = 0;
+            var totalFloors = 0;
 
             if (scrController.instance && ADOBase.lm && ADOBase.lm.listFloors != null)
             {
                 currentFloor = scrController.instance.currFloor ? scrController.instance.currFloor.seqID : 0;
-                totalFloors = ADOBase.lm.listFloors.Count;
+                totalFloors = ADOBase.lm.listFloors.Count - 1;
                 if (totalFloors > 0)
                 {
                     progress = Mathf.Clamp01((float)currentFloor / totalFloors);