diff --git a/pyrennial/hfhub.py b/pyrennial/hfhub.py
index 95e6707..c9eb56b 100644
--- a/pyrennial/hfhub.py
+++ b/pyrennial/hfhub.py
@@ -88,7 +88,9 @@ def datasets() -> DataFrame:
 def models_datasets() -> DataFrame:
     """One long dataframe with models and datasets."""
     ms = models()
+    ms["type"] = "model"
     ds = datasets()
+    ds["type"] = "dataset"
     return pd.concat([ms, ds], axis=0)