diff --git a/src/con_duct/suite/ls.py b/src/con_duct/suite/ls.py
index cb66d86..75c765f 100644
--- a/src/con_duct/suite/ls.py
+++ b/src/con_duct/suite/ls.py
@@ -173,7 +173,8 @@ def ls(args: argparse.Namespace) -> int:
     elif args.format == "json_pp":
         print(json.dumps(output_rows, indent=2))
     elif args.format == "yaml":
-        print(yaml.dump(output_rows, default_flow_style=False))
+        plain_rows = [dict(row) for row in output_rows]
+        print(yaml.dump(plain_rows, default_flow_style=False))
     else:
         raise RuntimeError(
             f"Unexpected format encountered: {args.format}. This should have been caught by argparse.",
diff --git a/test/test_suite.py b/test/test_suite.py
index d9d7859..467ad00 100644
--- a/test/test_suite.py
+++ b/test/test_suite.py
@@ -8,8 +8,7 @@
 import unittest
 from unittest.mock import MagicMock, mock_open, patch
 import pytest
-
-# import yaml
+import yaml
 from con_duct.suite import main, plot, pprint_json
 from con_duct.suite.ls import MINIMUM_SCHEMA_VERSION, ls
 
@@ -228,11 +227,10 @@ def test_ls_json_pp_output(self) -> None:
         for entry in parsed:
             self.assertIn("prefix", entry)
 
-    # def test_ls_yaml_output(self) -> None:
-    #     """Test YAML output format."""
-    #     result = self._run_ls("file*", "yaml")
-    #     import ipdb; ipdb.set_trace()
-    #     parsed = yaml.safe_load(result)
-    #     self.assertEqual(len(parsed), 2)
-    #     for entry in parsed:
-    #         self.assertIn("prefix", entry)
+    def test_ls_yaml_output(self) -> None:
+        """Test YAML output format."""
+        result = self._run_ls("file*", "yaml")
+        parsed = yaml.safe_load(result)
+        self.assertEqual(len(parsed), 2)
+        for entry in parsed:
+            self.assertIn("prefix", entry)