diff --git a/aider/io.py b/aider/io.py
index 43c4eb931..c27b0069f 100644
--- a/aider/io.py
+++ b/aider/io.py
@@ -207,7 +207,7 @@ class InputOutput:
 
             kb = KeyBindings()
 
-            @kb.add(Keys.ControlJ, eager=True)
+            @kb.add(Keys.ControlM, eager=True)
             def _(event):
                 event.current_buffer.insert_text('\n')