diff --git a/SabreTools.Library/External/CHDFile.cs b/SabreTools.Library/External/CHDFile.cs
index 5795bf0d..30f40f4c 100644
--- a/SabreTools.Library/External/CHDFile.cs
+++ b/SabreTools.Library/External/CHDFile.cs
@@ -95,7 +95,7 @@ namespace SabreTools.Library.External
 		/// <param name="chdstream">Stream representing the CHD file</param>
 		public CHDFile(Stream chdstream)
 		{
-			BinaryReader br = new BinaryReader(chdstream);
+			m_br = new BinaryReader(chdstream);
 		}
 
 		/// <summary>