diff --git a/langchain/document_loaders/unstructured.py b/langchain/document_loaders/unstructured.py
index 079af736..97137e08 100644
--- a/langchain/document_loaders/unstructured.py
+++ b/langchain/document_loaders/unstructured.py
@@ -33,12 +33,19 @@ class UnstructuredFileLoader(BaseLoader):
     def load(self) -> List[Document]:
         """Load file."""
         elements = self._get_elements()
-        metadata = {"source": self.file_path}
         if self.mode == "elements":
-            docs = [
-                Document(page_content=str(el), metadata=metadata) for el in elements
-            ]
+            docs: List[Document] = list()
+            for element in elements:
+                metadata = {"source": self.file_path}
+                # NOTE(MthwRobinson) - the attribute check is for backward compatibility
+                # with unstructured<0.4.9. The metadata attributed was added in 0.4.9.
+                if hasattr(element, "metadata"):
+                    metadata.update(element.metadata.to_dict())
+                if hasattr(element, "category"):
+                    metadata["category"] = element.category
+                docs.append(Document(page_content=str(element), metadata=metadata))
         elif self.mode == "single":
+            metadata = {"source": self.file_path}
             text = "\n\n".join([str(el) for el in elements])
             docs = [Document(page_content=text, metadata=metadata)]
         else: