diff --git a/aider/io.py b/aider/io.py
index f4e3c2eb2..ebdb7492c 100644
--- a/aider/io.py
+++ b/aider/io.py
@@ -113,7 +113,7 @@ class AutoCompleter(Completer):
 
         candidates = self.words
         candidates.update(set(self.fname_to_rel_fnames))
-        candidates = [(word, f"`{word}`") for word in candidates]
+        candidates = [(word, f"`{word}`" if word not in self.fname_to_rel_fnames else word) for word in candidates]
 
         last_word = words[-1]
         for word_match, word_insert in candidates:
@@ -122,7 +122,7 @@ class AutoCompleter(Completer):
                 if rel_fnames:
                     for rel_fname in rel_fnames:
                         yield Completion(
-                            f"`{rel_fname}`", start_position=-len(last_word), display=rel_fname
+                            rel_fname, start_position=-len(last_word), display=rel_fname
                         )
                 else:
                     yield Completion(