diff --git a/Lib/_pyrepl/reader.py b/Lib/_pyrepl/reader.py
index 5d83ce4df0d..bb1406bae74 100644
--- a/Lib/_pyrepl/reader.py
+++ b/Lib/_pyrepl/reader.py
@@ -130,7 +130,7 @@ default_keymap: tuple[tuple[KeySpec, CommandName], ...] = tuple(
         (r"\M-7", "digit-arg"),
         (r"\M-8", "digit-arg"),
         (r"\M-9", "digit-arg"),
-        # (r'\M-\n', 'insert-nl'),
+        (r"\M-\n", "accept"),
         ("\\\\", "self-insert"),
         (r"\x1b[200~", "enable_bracketed_paste"),
         (r"\x1b[201~", "disable_bracketed_paste"),
diff --git a/Misc/ACKS b/Misc/ACKS
index 41ff4fe59ae..d5ee1f84f95 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1667,6 +1667,7 @@ Fred Sells
 Jiwon Seo
 Iñigo Serna
 Joakim Sernbrant
+Rodrigo Girão Serrão
 Roger D. Serwy
 Jerry Seutter
 Pete Sevander