diff --git a/river/datasets/base.py b/river/datasets/base.py
index 63e234f0ba..53a5ba2f88 100644
--- a/river/datasets/base.py
+++ b/river/datasets/base.py
@@ -276,7 +276,7 @@ def download(self, force=False, verbose=True):
                 try:
                     n_bytes = int(meta["Content-Length"])
                     msg = f"Downloading {self.url} ({utils.pretty.humanize_bytes(n_bytes)})"
-                except KeyError:
+                except (KeyError, TypeError):
                     msg = f"Downloading {self.url}"
                 print(msg)