diff --git a/aider/commands.py b/aider/commands.py
index afe4a117b..722a06951 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -28,8 +28,9 @@ from .dump import dump  # noqa: F401
 
 
 class SwitchCoder(Exception):
-    def __init__(self, **kwargs):
+    def __init__(self, placeholder=None, **kwargs):
         self.kwargs = kwargs
+        self.placeholder = placeholder
 
 
 class Commands:
diff --git a/aider/main.py b/aider/main.py
index 2e0299e66..2b26c74a7 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -1109,6 +1109,10 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
         except SwitchCoder as switch:
             coder.ok_to_warm_cache = False
 
+            # Set the placeholder if provided
+            if hasattr(switch, 'placeholder') and switch.placeholder is not None:
+                io.placeholder = switch.placeholder
+
             kwargs = dict(io=io, from_coder=coder)
             kwargs.update(switch.kwargs)
             if "show_announcements" in kwargs: