diff --git a/aider/args.py b/aider/args.py
index 379034847..6709627bc 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -196,6 +196,12 @@ def get_parser(default_config_files, git_root):
         default=None,
         help="Specify the model to use for junior tasks (default depends on --model)",
     )
+    group.add_argument(
+        "--junior-edit-format",
+        metavar="JUNIOR_EDIT_FORMAT",
+        default=None,
+        help="Specify the edit format for the junior model (default: depends on junior model)",
+    )
     group.add_argument(
         "--show-model-warnings",
         action=argparse.BooleanOptionalAction,
diff --git a/aider/main.py b/aider/main.py
index 1fa07fc3c..6e411207b 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -534,7 +534,10 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
             args.model = "claude-3-5-sonnet-20240620"
 
     main_model = models.Model(
-        args.model, weak_model=args.weak_model, junior_model=args.junior_model
+        args.model,
+        weak_model=args.weak_model,
+        junior_model=args.junior_model,
+        junior_edit_format=args.junior_edit_format
     )
 
     if args.verbose:
diff --git a/aider/models.py b/aider/models.py
index a1e2adebd..eda233800 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -597,11 +597,12 @@ def get_model_info(model):
 
 
 class Model(ModelSettings):
-    def __init__(self, model, weak_model=None, junior_model=None):
+    def __init__(self, model, weak_model=None, junior_model=None, junior_edit_format=None):
         self.name = model
         self.max_chat_history_tokens = 1024
         self.weak_model = None
         self.junior_model = None
+        self.junior_edit_format = junior_edit_format
 
         self.info = self.get_model_info(model)
 
@@ -716,6 +717,11 @@ class Model(ModelSettings):
             weak_model=False,
             junior_model=False,
         )
+        
+        # Use the provided junior_edit_format if available, otherwise use the ModelSettings value
+        if self.junior_edit_format is None:
+            self.junior_edit_format = self.junior_edit_format or self.junior_model.edit_format
+        
         return self.junior_model
 
     def tokenizer(self, text):