diff --git a/tests/basic/test_commands.py b/tests/basic/test_commands.py
index dff664439df..970bc46ee07 100644
--- a/tests/basic/test_commands.py
+++ b/tests/basic/test_commands.py
@@ -236,7 +236,7 @@ def test_cmd_add_drop_directory(self):
         self.assertIn(str(Path("test_dir/test_file2.txt").resolve()), coder.abs_fnames)
         self.assertIn(str(Path("test_dir/another_dir/test_file.txt").resolve()), coder.abs_fnames)
 
-        commands.cmd_drop("test_dir/another_dir")
+        commands.cmd_drop(str(Path("test_dir/another_dir")))
         self.assertIn(str(Path("test_dir/test_file1.txt").resolve()), coder.abs_fnames)
         self.assertIn(str(Path("test_dir/test_file2.txt").resolve()), coder.abs_fnames)
         self.assertNotIn(