diff --git a/leafmap/common.py b/leafmap/common.py
index bbc3d1f0ff..f4616b0607 100644
--- a/leafmap/common.py
+++ b/leafmap/common.py
@@ -6296,17 +6296,17 @@ def datasets_full(self) -> list:
             return []
 
     @property
-    def prodFormats(self) -> list:
+    def prodFormats(self) -> set:
         """
         Return all datatypes available in any of the collections.
         Note that "All" is only peculiar to one dataset.
         """
-        return set(i["displayName"] for ds in self.DS for i in ds["formats"])
+        return {i["displayName"] for ds in self.DS for i in ds.get("formats", [])}
 
     @property
-    def datasets(self) -> list:
+    def datasets(self) -> set:
         """
-        Returns a list of dataset tags (most common human readable self description for specific datasets).
+        Returns a set of dataset tags (most common human readable self description for specific datasets).
         """
         return set(y["sbDatasetTag"] for x in self.DS for y in x["tags"])
 
diff --git a/leafmap/leafmap.py b/leafmap/leafmap.py
index 1fdd417563..112c6d6530 100644
--- a/leafmap/leafmap.py
+++ b/leafmap/leafmap.py
@@ -5585,7 +5585,7 @@ def _find_widget_of_type(
         return None
 
     def remove(self, widget: Any) -> None:
-        """Removes a widget to the map."""
+        """Removes a widget from the map."""
 
         basic_controls: Dict[str, ipyleaflet.Control] = {
             "layer_editor": map_widgets.LayerEditor,