diff --git a/core/io/io.factor b/core/io/io.factor
index b2485a6141..d4d54b8852 100644
--- a/core/io/io.factor
+++ b/core/io/io.factor
@@ -248,3 +248,15 @@ M: output-stream stream-nl CHAR: \n swap stream-write1 ; inline
 M: output-stream stream-seekable? drop f ; inline
 M: output-stream stream-length drop f ; inline
 
+M: f stream-read1 drop f ; inline
+M: f stream-read-unsafe 3drop 0 ; inline
+M: f stream-read-until 2drop f f ; inline
+M: f stream-read-partial-unsafe 3drop 0 ; inline
+M: f stream-readln drop f ; inline
+M: f stream-contents drop f ; inline
+
+M: f stream-write1 2drop ; inline
+M: f stream-write 2drop ; inline
+M: f stream-flush drop ; inline
+M: f stream-nl drop ; inline
+