diff --git a/doc/effective_go.html b/doc/effective_go.html
index 694f05d101..3ab05fc1cf 100644
--- a/doc/effective_go.html
+++ b/doc/effective_go.html
@@ -1441,7 +1441,7 @@ then make the receiver for the method a value of that type.
type ByteSlice []byte
-func (slice ByteSlice) Append(data []byte) []slice {
+func (slice ByteSlice) Append(data []byte) []byte {
// Body exactly the same as above
}