diff --git a/src/packagedcode/models.py b/src/packagedcode/models.py
index 0c4ffb9e56..a00fcc2b8b 100644
--- a/src/packagedcode/models.py
+++ b/src/packagedcode/models.py
@@ -1617,7 +1617,11 @@ class Package(PackageData):
         label='List of datafile paths',
         help='List of datafile paths used to create this package.'
     )
+    documentation_url = String(
+        label='Documentation URL',
+        help='URL that documents this package.'
 
+    )
     datasource_ids = List(
         item_type=str,
         label='datasource ids',
@@ -1638,10 +1642,11 @@ def to_package_data(self):
         mapping.pop('package_uid', None)
         mapping.pop('datafile_paths', None)
         mapping.pop('datasource_ids', None)
+        mapping.pop('documentation_url', None)
         return PackageData.from_dict(mapping)
 
     @classmethod
-    def from_package_data(cls, package_data, datafile_path=None, package_only=False):
+    def from_package_data(cls, package_data, datafile_path=None, package_only=False , documentation_url=None):
         """
         Return a Package from a ``package_data`` PackageData object
         or mapping. Or None.
@@ -1665,7 +1670,8 @@ def from_package_data(cls, package_data, datafile_path=None, package_only=False)
                 for license_match in detection['matches']:
                     if not license_match['from_file']:
                         license_match['from_file'] = datafile_path
-
+        if documentation_url:
+            package_data_mapping['documentation_url'] = documentation_url
         package = cls.from_dict(package_data_mapping)
 
         if not package.package_uid: