diff --git a/test/completion/stdlib.py b/test/completion/stdlib.py
index 8b23bc1b..8072138e 100644
--- a/test/completion/stdlib.py
+++ b/test/completion/stdlib.py
@@ -25,7 +25,7 @@ next(reversed(yielder()))
 #?
 next(reversed())
 
-#? str()
+#? str() bytes()
 next(open(''))
 
 #? int()