diff --git a/trunk/ripnews/news/article.rb b/trunk/ripnews/news/article.rb
index 19fd9a4..0c7ab11 100644
--- a/trunk/ripnews/news/article.rb
+++ b/trunk/ripnews/news/article.rb
@@ -818,7 +818,7 @@ def _ydecode_file(file, outfile)
 				i += 1
 				line[i] -= 64
 			end
-			outfile.putc ymap[line[i]]
+			outfile.putc ymap[line[i]%255]
 			bytes += 1
 		end