diff --git a/CSJ2K/j2k/codestream/reader/FileBitstreamReaderAgent.cs b/CSJ2K/j2k/codestream/reader/FileBitstreamReaderAgent.cs
index e992cad6..9309377c 100644
--- a/CSJ2K/j2k/codestream/reader/FileBitstreamReaderAgent.cs
+++ b/CSJ2K/j2k/codestream/reader/FileBitstreamReaderAgent.cs
@@ -299,7 +299,7 @@ namespace CSJ2K.j2k.codestream.reader
 			{
 				//UPGRADE_WARNING: Data types in Visual C# might be different.  Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
 				tnbytes = (int) (trate * hd.MaxCompImgWidth * hd.MaxCompImgHeight) / 8;
-                if (tnbytes < 0) tnbytes = int.MaxValue;
+			if (tnbytes <= 0) tnbytes = int.MaxValue;
 			}
 			isTruncMode = !pl.getBooleanParameter("parsing");
 			
@@ -2727,4 +2727,4 @@ namespace CSJ2K.j2k.codestream.reader
 			return ccb;
 		}
 	}
-}
\ No newline at end of file
+}