diff --git a/lib/galaxy/webapps/galaxy/services/history_contents.py b/lib/galaxy/webapps/galaxy/services/history_contents.py
index 0e6408227674..f811c7b781dd 100644
--- a/lib/galaxy/webapps/galaxy/services/history_contents.py
+++ b/lib/galaxy/webapps/galaxy/services/history_contents.py
@@ -1269,9 +1269,9 @@ def __create_dataset_collection(
                 raise exceptions.RequestParameterMissingException("'content' id of target to copy is missing")
             dbkey = payload.dbkey
             copy_required = dbkey is not None
-            copy_elements = payload.copy_elements or copy_required
+            copy_elements = payload.copy_elements
             if copy_required and not copy_elements:
-                raise exceptions.RequestParameterMissingException(
+                raise exceptions.RequestParameterInvalidException(
                     "copy_elements passed as 'false' but it is required to change specified attributes"
                 )
             dataset_instance_attributes = {}
diff --git a/lib/galaxy_test/api/test_history_contents.py b/lib/galaxy_test/api/test_history_contents.py
index 74be58604d08..cf5f76c52d5f 100644
--- a/lib/galaxy_test/api/test_history_contents.py
+++ b/lib/galaxy_test/api/test_history_contents.py
@@ -495,7 +495,7 @@ def test_jobs_summary_implicit_hdca(self, history_id):
 
     def test_dataset_collection_hide_originals(self, history_id):
         payload = self.dataset_collection_populator.create_pair_payload(
-            history_id, type="dataset_collection", direct_upload=False
+            history_id, type="dataset_collection", direct_upload=False, copy_elements=False
         )
 
         payload["hide_source_items"] = True
@@ -503,9 +503,7 @@ def test_dataset_collection_hide_originals(self, history_id):
         self.__check_create_collection_response(dataset_collection_response)
 
         contents_response = self._get(f"histories/{history_id}/contents")
-        datasets = [
-            d for d in contents_response.json() if d["history_content_type"] == "dataset" and d["hid"] in [1, 2]
-        ]
+        datasets = [d for d in contents_response.json() if d["history_content_type"] == "dataset"]
         # Assert two datasets in source were hidden.
         assert len(datasets) == 2
         assert not datasets[0]["visible"]