diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 646f0e64b..1bad81abe 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -1420,6 +1420,8 @@ class Coder:
     def lint_edited(self, fnames):
         res = ""
         for fname in fnames:
+            if not fname:
+                continue
             errors = self.linter.lint(self.abs_root_path(fname))
 
             if errors: