diff --git a/aider/commands.py b/aider/commands.py
index 645397c03..f4ad56fdd 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -534,6 +534,8 @@ class Commands:
         return files
 
     def glob_filtered_to_repo(self, pattern):
+        if not pattern:
+            return []
         try:
             if os.path.isabs(pattern):
                 # Handle absolute paths