X-Git-Url: http://nitlanguage.org

diff --git a/lib/filter_stream.nit b/lib/filter_stream.nit
index 999f12c..66366c6 100644
--- a/lib/filter_stream.nit
+++ b/lib/filter_stream.nit
@@ -12,7 +12,7 @@
 # another product.
 
 class FilterIStream
-special IStream
+	super IStream
 	# Filter readed elements
 	readable var _stream: nullable IStream
 
@@ -29,7 +29,7 @@ special IStream
 end
 
 class FilterOStream
-special OStream
+	super OStream
 	# Filter outputed elements
 	readable var _stream: nullable OStream
 
@@ -47,7 +47,7 @@ special OStream
 end
 
 class StreamCat
-special FilterIStream
+	super FilterIStream
 	var _streams: Iterator[IStream]
 
 	redef fun eof: Bool
@@ -98,7 +98,7 @@ special FilterIStream
 end
 
 class StreamDemux
-special FilterOStream
+	super FilterOStream
 	var _streams: Array[OStream]
 
 	redef fun is_writable: Bool
@@ -127,6 +127,15 @@ special FilterOStream
 		end
 	end
 
+	redef fun close
+	do
+		for i in _streams
+		do
+			stream = i
+			stream.close
+		end
+	end
+
 	init with_streams(streams: Array[OStream])
 	do
 		_streams = streams