diff --git a/src/pkg/bufio/bufio.go b/src/pkg/bufio/bufio.go
index 1cac079..8c95190 100644
--- a/src/pkg/bufio/bufio.go
+++ b/src/pkg/bufio/bufio.go
@@ -284,7 +284,7 @@
 }
 
 // ReadBytes reads until the first occurrence of delim in the input,
-// returning a string containing the data up to and including the delimiter.
+// returning a slice containing the data up to and including the delimiter.
 // If ReadBytes encounters an error before finding a delimiter,
 // it returns the data read before the error and the error itself (often os.EOF).
 // ReadBytes returns err != nil if and only if line does not end in delim.