diff --git a/client/src/api/schema/schema.ts b/client/src/api/schema/schema.ts
index 817248b6b43..fa5d31f0fa3 100644
--- a/client/src/api/schema/schema.ts
+++ b/client/src/api/schema/schema.ts
@@ -3751,7 +3751,7 @@ export interface components {
              * Element Type
              * @description The type of the element. Used to interpret the `object` field.
              */
-            element_type: components["schemas"]["DCEType"];
+            element_type?: components["schemas"]["DCEType"] | null;
             /**
              * Dataset Collection Element ID
              * @example 0123456789ABCDEF
@@ -3767,10 +3767,11 @@ export interface components {
              * Object
              * @description The element's specific data depending on the value of `element_type`.
              */
-            object:
+            object?:
                 | components["schemas"]["HDAObject"]
                 | components["schemas"]["HDADetailed"]
-                | components["schemas"]["DCObject"];
+                | components["schemas"]["DCObject"]
+                | null;
         };
         /**
          * DCEType
diff --git a/lib/galaxy/schema/schema.py b/lib/galaxy/schema/schema.py
index 277bb82f481..5badff54396 100644
--- a/lib/galaxy/schema/schema.py
+++ b/lib/galaxy/schema/schema.py
@@ -971,13 +971,13 @@ class DCESummary(Model, WithModelClass):
         title="Element Identifier",
         description="The actual name of this element.",
     )
-    element_type: DCEType = Field(
-        ...,
+    element_type: Optional[DCEType] = Field(
+        None,
         title="Element Type",
         description="The type of the element. Used to interpret the `object` field.",
     )
-    object: Union[HDAObject, HDADetailed, DCObject] = Field(
-        ...,
+    object: Optional[Union[HDAObject, HDADetailed, DCObject]] = Field(
+        None,
         title="Object",
         description="The element's specific data depending on the value of `element_type`.",
     )