---
doc/lispref/control.texi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/doc/lispref/control.texi b/doc/lispref/control.texi
index fb2e1bc..b29bb9b 100644
--- a/doc/lispref/control.texi
+++ b/doc/lispref/control.texi
@@ -716,6 +716,9 @@ The following piece of code demonstrates some important principles of
working with iterators.
address@hidden
+;;-*-lexical-binding: t-*-
+(require 'generator)
+
(iter-defun my-iter (x)
(iter-yield (1+ (iter-yield (1+ x))))
;; Return normally
--
2.4.3