diff --git a/objects/screen.c b/objects/screen.c
index e01a2f8d..0791ea31 100644
--- a/objects/screen.c
+++ b/objects/screen.c
@@ -30,7 +30,7 @@
  *
  * It is also possible loop over all current screens using:
  *
- *    for s, screen do
+ *    for s in screen do
  *        -- do something
  *    end
  *