diff --git a/aider/repomap.py b/aider/repomap.py
index 686634141..7115e06f9 100644
--- a/aider/repomap.py
+++ b/aider/repomap.py
@@ -257,8 +257,8 @@ class RepoMap:
 
         try:
             lexer = guess_lexer_for_filename(fname, code)
-        except Exception as ex:  # On Windows, bad ref to time.clock which is deprecated?
-            # self.io.tool_error(f"Error lexing {fname}: {ex}")
+        except Exception:  # On Windows, bad ref to time.clock which is deprecated?
+            # self.io.tool_error(f"Error lexing {fname}")
             return
 
         tokens = list(lexer.get_tokens(code))