diff --git a/aider/commands.py b/aider/commands.py
index 714502023..4d06cbf35 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -649,18 +649,21 @@ class Commands:
 
         filenames = parse_quoted_filenames(args)
         for word in filenames:
+            # Expand tilde in the path
+            expanded_word = os.path.expanduser(word)
+            
             # Handle read-only files separately, without glob_filtered_to_repo
-            read_only_matched = [f for f in self.coder.abs_read_only_fnames if word in f]
+            read_only_matched = [f for f in self.coder.abs_read_only_fnames if expanded_word in f]
 
             if read_only_matched:
                 for matched_file in read_only_matched:
                     self.coder.abs_read_only_fnames.remove(matched_file)
                     self.io.tool_output(f"Removed read-only file {matched_file} from the chat")
 
-            matched_files = self.glob_filtered_to_repo(word)
+            matched_files = self.glob_filtered_to_repo(expanded_word)
 
             if not matched_files:
-                matched_files.append(word)
+                matched_files.append(expanded_word)
 
             for matched_file in matched_files:
                 abs_fname = self.coder.abs_root_path(matched_file)