diff --git a/Project-Aurora/Project-Aurora/Bitmaps/GdiPlus/GdiPartialCopyBitmapReader.cs b/Project-Aurora/Project-Aurora/Bitmaps/GdiPlus/GdiPartialCopyBitmapReader.cs
index 456b75679..980834f4f 100644
--- a/Project-Aurora/Project-Aurora/Bitmaps/GdiPlus/GdiPartialCopyBitmapReader.cs
+++ b/Project-Aurora/Project-Aurora/Bitmaps/GdiPlus/GdiPartialCopyBitmapReader.cs
@@ -58,7 +58,7 @@ public Color GetRegionColor(Rectangle rectangle)
                 Scan0 = buffer
             };
             
-            Bitmaps[rectangle.Size] = buff;
+            Bitmaps[_bitmapSize] = buff;
         }
 
         var srcData = _bitmap.LockBits(