diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 5651648bd..d90b4a821 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -246,7 +246,7 @@ class Coder:
         prompt = ""
         for fname in fnames:
             relative_fname = self.get_rel_fname(fname)
-            prompt += utils.quoted_file(fname, relative_fname)
+            prompt += utils.quoted_file(fname, relative_fname, fence_ticks=self.get_fence_ticks())
         return prompt
 
     def get_files_messages(self):
@@ -355,7 +355,7 @@ class Coder:
 
         return self.send_new_user_message(inp)
 
-    num_ticks = 5
+    num_ticks = 4
 
     def get_fence_ticks(self):
         return "`" * self.num_ticks
diff --git a/aider/utils.py b/aider/utils.py
index 10fdc5a07..459ac194e 100644
--- a/aider/utils.py
+++ b/aider/utils.py
@@ -3,10 +3,10 @@ from pathlib import Path
 from .dump import dump  # noqa: F401
 
 
-def quoted_file(fname, display_fname, number=False):
+def quoted_file(fname, display_fname, fence_ticks="```", number=False):
     prompt = "\n"
     prompt += display_fname
-    prompt += "\n````\n"
+    prompt += f"\n{fence_ticks}\n"
     file_content = Path(fname).read_text()
     lines = file_content.splitlines()
     for i, line in enumerate(lines, start=1):
@@ -14,7 +14,7 @@ def quoted_file(fname, display_fname, number=False):
             prompt += f"{i:4d} "
         prompt += line + "\n"
 
-    prompt += "````\n"
+    prompt += f"{fence_ticks}\n"
     return prompt