diff --git a/doc/std/io/StreamReader.im b/doc/std/io/StreamReader.im
index 9b079cb..33d477f 100644
--- a/doc/std/io/StreamReader.im
+++ b/doc/std/io/StreamReader.im
@@ -1,5 +1,5 @@
 package std.io
 
 protocol StreamReader
-    - get:buf
+    - get:
 end
diff --git a/doc/std/io/StreamWriter.im b/doc/std/io/StreamWriter.im
index b1ec45b..3a2106c 100644
--- a/doc/std/io/StreamWriter.im
+++ b/doc/std/io/StreamWriter.im
@@ -2,6 +2,6 @@ package std.io
 
 protocol StreamWriter
     - flush
-    - print:msg
-    - put:msg
+    - print:
+    - put:
 end